{"product_id":"acid-red-92-phloxine-b","title":"Acid Red 92 (Phloxine B)","description":"\u003c!--\nAusamics Product Page Standard v1.0 (Oct 2026)\nProduct: Acid Red 92 (Phloxine B)\nCatalogue No.: ASD-631\nSupplier: Ausamics Pty Ltd, Melbourne, Australia\nCategory: Biological Stain \/ Colourant\nPrimary use: Colourant for cosmetic formulation and histological staining\n--\u003e\n\u003cdiv class=\"aus-pp\"\u003e\n\u003cstyle\u003e\n.aus-pp{container-type:inline-size;font-family:\"Segoe UI\",system-ui,-apple-system,Roboto,Arial,sans-serif;color:#1d2935;max-width:1200px;margin:0 auto;line-height:1.6;font-size:15px}\n.aus-pp *{box-sizing:border-box}\n.aus-pp h2,.aus-pp h3,.aus-pp h4,.aus-pp p{margin-top:0}\n.aus-pp em{font-style:italic}\n.aus-pp a{color:#1d6fb8}\n.aus-pp .faq{border-top:1px solid #e2e8f0;padding:12px 0}\n.aus-pp .faq:first-of-type{border-top:0;padding-top:0}\n.aus-pp .faq h4{font-size:15px;margin:0 0 4px}\n.aus-pp .faq p{margin:0}\n.aus-pp 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li::before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:#2d5a3d;color:#fff;font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center}\n.aus-pp .info{background:#f0f4f1;border-left:4px solid #2d5a3d;border-radius:10px;padding:12px 16px;font-size:14px;margin:10px 0}\n.aus-pp .warn{background:#fff3e0;border-left:4px solid #e65100;border-radius:10px;padding:12px 16px;font-size:14px;margin:10px 0}\n.aus-pp .foot{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:14px 18px;font-size:13px;color:#52606d;margin-top:10px}\n@container (max-width:860px){.aus-pp .hero,.aus-pp .grid{grid-template-columns:1fr}.aus-pp .glance{min-width:0}.aus-pp .hero h2{font-size:24px}.aus-pp .tab-labels label{flex:1 1 45%;text-align:center;padding:10px 8px;font-size:13px}}\n.aus-pp #asd631-t1:checked~.tab-labels label[for=asd631-t1]{background:#fff;color:#2d5a3d;border-bottom:2px solid #fff;box-shadow:inset 0 3px 0 #2d5a3d}\n.aus-pp #asd631-t2:checked~.tab-labels label[for=asd631-t2]{background:#fff;color:#2d5a3d;border-bottom:2px solid #fff;box-shadow:inset 0 3px 0 #2d5a3d}\n.aus-pp #asd631-t3:checked~.tab-labels label[for=asd631-t3]{background:#fff;color:#2d5a3d;border-bottom:2px solid #fff;box-shadow:inset 0 3px 0 #2d5a3d}\n.aus-pp #asd631-t4:checked~.tab-labels label[for=asd631-t4]{background:#fff;color:#2d5a3d;border-bottom:2px solid #fff;box-shadow:inset 0 3px 0 #2d5a3d}\n.aus-pp #asd631-t1:checked~.panels .p1{display:block}\n.aus-pp #asd631-t2:checked~.panels .p2{display:block}\n.aus-pp #asd631-t3:checked~.panels .p3{display:block}\n.aus-pp #asd631-t4:checked~.panels .p4{display:block}\u003c\/style\u003e\n\u003cdiv class=\"hero\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"eyebrow\"\u003eBiological Stain \u0026amp; Colourant\u003c\/span\u003e\n\u003cp class=\"subtitle\"\u003eWater-soluble xanthene dye giving a vivid bluish-pink shade, stable in alkaline formulations and used as a histological counterstain\u003c\/p\u003e\n\u003cdiv class=\"badges\"\u003e\n\u003cspan class=\"badge b-solid\"\u003eCat. No. ASD-631\u003c\/span\u003e\u003cspan class=\"badge b-outline\"\u003eCAS 18472-87-2\u003c\/span\u003e\u003cspan class=\"badge b-outline\"\u003eC.I. 45410\u003c\/span\u003e\u003cspan class=\"badge b-outline\"\u003eDye content ≥ 85%\u003c\/span\u003e\u003cspan class=\"badge b-gold\"\u003eCosmetics \u0026amp; histology\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"glance\"\u003e\n\u003ch4\u003eAt a glance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eClass\u003c\/span\u003e\u003cspan\u003eXanthene dye\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eShade\u003c\/span\u003e\u003cspan\u003eBluish pink to magenta\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAbsorption max.\u003c\/span\u003e\u003cspan\u003e~548 nm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSolubility\u003c\/span\u003e\u003cspan\u003eWater soluble\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"note\"\u003eSupplied from Melbourne. TDS and SDS available. Batch COA on request.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tabs\"\u003e\n\u003cinput type=\"radio\" name=\"asd631-tabs\" id=\"asd631-t1\" checked\u003e\u003cinput type=\"radio\" name=\"asd631-tabs\" id=\"asd631-t2\"\u003e\u003cinput type=\"radio\" name=\"asd631-tabs\" id=\"asd631-t3\"\u003e\u003cinput type=\"radio\" name=\"asd631-tabs\" id=\"asd631-t4\"\u003e\u003cdiv class=\"tab-labels\"\u003e\n\u003clabel for=\"asd631-t1\"\u003eProduct Description\u003c\/label\u003e\u003clabel for=\"asd631-t2\"\u003eTechnical Data\u003c\/label\u003e\u003clabel for=\"asd631-t3\"\u003eSafety Data\u003c\/label\u003e\u003clabel for=\"asd631-t4\"\u003eQuality \u0026amp; COA\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panels\"\u003e\n\u003cdiv class=\"panel p1\"\u003e\n\u003cdiv class=\"grid\"\u003e\n\u003cdiv\u003e\n\u003csection\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eAcid Red 92, better known as Phloxine B, is a water-soluble xanthene dye of the halogenated fluorescein family. It is the disodium salt of tetrabromo-tetrachlorofluorescein, listed as C.I. 45410, and gives a vivid bluish pink to magenta shade with a characteristic yellow-green fluorescence in dilute solution.\u003c\/p\u003e\n\u003cp\u003eTwo properties account for most of its use. It is highly soluble in water as the sodium salt, and it holds its colour in alkaline conditions where many pink dyes shift or fade. That makes it the standard choice for cold-process soap and bath products, where the pH is high enough to defeat most alternatives. In the histology laboratory the same dye is used as a cytoplasmic counterstain, where its affinity for cytoplasm and connective tissue complements a nuclear stain.\u003c\/p\u003e\n\u003cdiv class=\"info\"\u003e\n\u003cstrong\u003eShade and pH:\u003c\/strong\u003e the water-soluble disodium salt is what gives the clean pink. Below about pH 4 the dye converts to its free acid form, which is poorly water-soluble, so in acidic formulations the colour can dull, shift or precipitate. Alkaline and near-neutral systems are where this dye performs.\u003c\/div\u003e\n\u003ch4\u003eKey features\u003c\/h4\u003e\n\u003cul class=\"list\"\u003e\n\u003cli\u003eHolds its shade in high-pH formulations, including cold-process soap\u003c\/li\u003e\n\u003cli\u003eVery high water solubility; disperses readily without a wetting agent\u003c\/li\u003e\n\u003cli\u003eLow water-insoluble matter, so solutions are clear rather than hazy\u003c\/li\u003e\n\u003cli\u003eTested for lead, mercury and arsenic on every batch\u003c\/li\u003e\n\u003cli\u003eFluoresces yellow-green in dilute aqueous solution, useful in microscopy\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eIdentification\u003c\/h3\u003e\n\u003cdiv class=\"formula\"\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical name\u003c\/td\u003e\n\u003ctd\u003eDisodium 2',4',5',7'-tetrabromo-4,5,6,7-tetrachlorofluorescein\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon names\u003c\/td\u003e\n\u003ctd\u003ePhloxine B; Acid Red 92; Cyanosine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd class=\"val\"\u003e18472-87-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour Index\u003c\/td\u003e\n\u003ctd class=\"val\"\u003eC.I. 45410\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular formula\u003c\/td\u003e\n\u003ctd class=\"val\"\u003eC\u003csub\u003e20\u003c\/sub\u003eH\u003csub\u003e2\u003c\/sub\u003eBr\u003csub\u003e4\u003c\/sub\u003eCl\u003csub\u003e4\u003c\/sub\u003eNa\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e5\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd class=\"val\"\u003eapprox. 829.6 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDye class\u003c\/td\u003e\n\u003ctd\u003eXanthene (halogenated fluorescein)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHS \/ AHECC code\u003c\/td\u003e\n\u003ctd class=\"val\"\u003e3204.19.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"small\" style=\"margin:8px 0 0\"\u003eThe free acid form of the same chromophore is a distinct substance with its own CAS number and is not interchangeable with this product.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBath products\u003c\/td\u003e\n\u003ctd\u003eBath bombs and bath salts, where high water solubility gives even dispersion without speckling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoap making\u003c\/td\u003e\n\u003ctd\u003eCold-process and hot-process soap, where the dye holds its shade at high pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRinse-off personal care\u003c\/td\u003e\n\u003ctd\u003eShampoos, conditioners, body washes and lotions, as a formulation colourant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHistology\u003c\/td\u003e\n\u003ctd\u003eCytoplasmic counterstain, including phloxine–eosin and phloxine–tartrazine methods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrobiology\u003c\/td\u003e\n\u003ctd\u003eDye component in certain selective and differential culture media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDental\u003c\/td\u003e\n\u003ctd\u003eColourant in plaque-disclosing preparations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\n\u003cstrong\u003eRegulatory status governs use, not this list.\u003c\/strong\u003e Permitted applications for this colourant differ between jurisdictions and between product categories, and some categories are excluded. Confirm the current rules for your market and product type, and the certification status of the batch, before formulating. See the Technical Data tab.\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eWill it survive cold-process soap?\u003c\/h4\u003e\n\u003cp\u003eYes, and that is its main advantage over most pink colourants. The dye is stable in alkaline conditions, so it comes through saponification without the shift to grey or brown that many alternatives show.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eWhy did my colour go dull or cloudy in an acidic product?\u003c\/h4\u003e\n\u003cp\u003eBelow about pH 4 the dye converts to its free acid form, which is poorly soluble in water. The result is a duller shade, haze, or a fine precipitate. For low-pH formulations choose a colourant stable in that range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eHow much do I need?\u003c\/h4\u003e\n\u003cp\u003eVery little. As a highly tinctorial water-soluble dye it is usually dosed at a small fraction of a percent, and the practical route is to make a 1% stock solution in water and add that to the batch. Start low and work up, since both the shade and the strength depend on your base, its pH and its opacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eDoes it stain skin, surfaces or equipment?\u003c\/h4\u003e\n\u003cp\u003eIt does, readily. Wear gloves, protect work surfaces, and expect it to colour plastics and grout. Make up stock solutions rather than handling dry powder where you can, as the dry dye is the harder form to contain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eIs it lightfast?\u003c\/h4\u003e\n\u003cp\u003eOnly moderately. Like other xanthene dyes it fades on prolonged exposure to strong light. Store the powder and any stock solutions protected from light, and keep it in mind for products displayed in sunlight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003ch4\u003eIs this the same as the food colour?\u003c\/h4\u003e\n\u003cp\u003eNo. This colourant is not permitted for food use in the major markets. Do not use it in food, beverages or anything intended for ingestion.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003caside\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable class=\"specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalogue No.\u003c\/td\u003e\n\u003ctd\u003eASD-631\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlso known as\u003c\/td\u003e\n\u003ctd\u003ePhloxine B; Acid Red 92; Cyanosine; C.I. 45410\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd\u003e18472-87-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDye content\u003c\/td\u003e\n\u003ctd\u003e≥ 85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance\u003c\/td\u003e\n\u003ctd\u003eDark red to reddish-brown powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolution colour\u003c\/td\u003e\n\u003ctd\u003eBluish pink to magenta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsorption maximum\u003c\/td\u003e\n\u003ctd\u003eapprox. 548 nm in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater-insoluble matter\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHS \/ AHECC code\u003c\/td\u003e\n\u003ctd\u003e3204.19.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-gold\"\u003e\n\u003ch4\u003eMaking a Stock Solution\u003c\/h4\u003e\n\u003col class=\"steps\"\u003e\n\u003cli\u003eWeigh 1 g of dye, avoiding dust.\u003c\/li\u003e\n\u003cli\u003eAdd to 100 mL purified water.\u003c\/li\u003e\n\u003cli\u003eStir until completely dissolved.\u003c\/li\u003e\n\u003cli\u003eStore in a closed amber bottle, protected from light.\u003c\/li\u003e\n\u003cli\u003eAdd to the batch by volume and adjust to the shade you want.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eStorage\u003c\/h4\u003e\n\u003cp\u003eStore at 10–30 °C in a tightly sealed container, dry and protected from direct sunlight. Hygroscopic: reseal after use. Protect stock solutions from light to limit fading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-green\"\u003e\n\u003ch4\u003eDocumentation\u003c\/h4\u003e\n\u003cul class=\"list\"\u003e\n\u003cli\u003eTechnical Data Sheet (TDS)\u003c\/li\u003e\n\u003cli\u003eSafety Data Sheet (SDS)\u003c\/li\u003e\n\u003cli\u003eBatch Certificate of Analysis (COA)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"foot\"\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e For cosmetic manufacturing, laboratory and research use only. Not for food use or internal consumption. Users are responsible for confirming that this colourant is permitted in their market and product category.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panel p2\"\u003e\u003cdiv class=\"grid\"\u003e\n\u003cdiv\u003e\n\u003csection\u003e\u003ch3\u003eDye Chemistry\u003c\/h3\u003e\n\u003cp\u003ePhloxine B is a halogenated fluorescein. The parent xanthene chromophore carries four bromine atoms on the xanthene ring and four chlorine atoms on the pendant benzene ring, and the molecule is supplied as the disodium salt. The halogen substitution shifts the absorption maximum from the yellow-green of fluorescein itself towards 548 nm, which is what produces the bluish pink shade, and the two sodium carboxylate groups give the high water solubility.\u003c\/p\u003e\n\u003cp\u003eThe dye is an acid dye: it carries a net negative charge in solution and binds to positively charged sites. This is the basis of its behaviour as a cytoplasmic counterstain in histology, where it binds cytoplasmic and connective-tissue proteins while a basic dye such as haematoxylin stains the nuclei.\u003c\/p\u003e\n\u003cp\u003eThe same acid character explains the pH behaviour. The soluble form is the ionised salt; protonating the carboxylate groups at low pH gives the free acid, which is poorly water-soluble and can drop out of solution.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003ePhysical and Chemical Properties\u003c\/h3\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance\u003c\/td\u003e\n\u003ctd\u003eDark red to reddish-brown powder or granules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd\u003eapprox. 829.6 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsorption maximum\u003c\/td\u003e\n\u003ctd\u003eapprox. 548 nm in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluorescence\u003c\/td\u003e\n\u003ctd\u003eYellow-green in dilute aqueous solution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolubility, water\u003c\/td\u003e\n\u003ctd\u003eReadily soluble; clear bluish-pink solution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolubility, ethanol\u003c\/td\u003e\n\u003ctd\u003eSoluble\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH stability\u003c\/td\u003e\n\u003ctd\u003eStable in neutral and alkaline systems; may dull or precipitate below about pH 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight stability\u003c\/td\u003e\n\u003ctd\u003eModerate; fades on prolonged strong light exposure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHygroscopicity\u003c\/td\u003e\n\u003ctd\u003eHygroscopic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"small\"\u003ePhysical constants are literature values for the pure dye and are given for guidance. Batch results are reported on the COA.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eRegulatory Position\u003c\/h3\u003e\n\u003cp\u003eThis colourant appears in the colour-additive and cosmetic-ingredient schedules of the major markets, but under different names, different permitted categories and different conditions. The entries that matter are these.\u003c\/p\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eJurisdiction\u003c\/th\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003ctd\u003eThe chromophore corresponds to the colour additive listed as D\u0026amp;C Red No. 28 under 21 CFR 74.1328, permitted in drugs and cosmetics and not permitted in food. Material supplied for that use must be from an FDA-certified batch carrying an FDA certification lot number; chemical identity alone does not make a batch certified.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEuropean Union\u003c\/td\u003e\n\u003ctd\u003eC.I. 45410 appears in the colourants annex of the EU Cosmetics Regulation. The permitted product categories and any purity or use conditions are set by the current annex entry, which should be checked directly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAustralia\u003c\/td\u003e\n\u003ctd\u003eIndustrial chemicals, including cosmetic ingredients, are regulated by AICIS. Confirm the substance's inventory status and any applicable conditions for your intended use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\n\u003cstrong\u003eConfirm before you formulate.\u003c\/strong\u003e Ausamics supplies this dye against the specification on this page. We do not represent that any given batch is certified for a particular regulatory category. If your application requires certified material, say so when you enquire and we will confirm what documentation is available for the batch.\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eHandling Notes\u003c\/h3\u003e\n\u003cul class=\"list\"\u003e\n\u003cli\u003eWeigh in a ventilated area and avoid generating dust. The dry dye stains readily and spreads easily.\u003c\/li\u003e\n\u003cli\u003ePrepare a 1% aqueous stock solution and dose by volume. This gives better batch-to-batch consistency than weighing small quantities of powder, and reduces handling of the dry dye.\u003c\/li\u003e\n\u003cli\u003eAdd the dye to the water phase, not to oils. It is water-soluble and will not disperse in an oil phase.\u003c\/li\u003e\n\u003cli\u003eProtect powder and stock solutions from light.\u003c\/li\u003e\n\u003cli\u003eFor soap, add at the lye or water stage so the colour is evenly distributed before saponification.\u003c\/li\u003e\n\u003cli\u003eTest the shade in your own base before scaling up. Opacity, pH and surfactant system all change the result.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eLiterature and References\u003c\/h3\u003e\n\u003col class=\"refs\"\u003e\n\u003cli\u003eGreen FJ. \u003cem\u003eThe Sigma-Aldrich Handbook of Stains, Dyes and Indicators\u003c\/em\u003e. Aldrich Chemical Company; 1990.\u003c\/li\u003e\n\u003cli\u003eLillie RD. \u003cem\u003eH. J. Conn's Biological Stains\u003c\/em\u003e, 9th ed. Williams \u0026amp; Wilkins; 1977.\u003c\/li\u003e\n\u003cli\u003eSociety of Dyers and Colourists and American Association of Textile Chemists and Colorists. \u003cem\u003eColour Index International\u003c\/em\u003e. SDC\/AATCC.\u003c\/li\u003e\n\u003cli\u003eUS Food and Drug Administration. 21 CFR 74.1328 — D\u0026amp;C Red No. 28. Code of Federal Regulations.\u003c\/li\u003e\n\u003cli\u003eBancroft JD, Gamble M, eds. \u003cem\u003eTheory and Practice of Histological Techniques\u003c\/em\u003e, 6th ed. Churchill Livingstone; 2008.\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003caside\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eTypical Specification\u003c\/h4\u003e\n\u003ctable class=\"specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDye content (assay)\u003c\/td\u003e\n\u003ctd\u003e≥ 85.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolatile matter plus chlorides and sulfates (as sodium salts)\u003c\/td\u003e\n\u003ctd\u003e≤ 15.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater-insoluble matter (alkaline)\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead (Pb)\u003c\/td\u003e\n\u003ctd\u003e≤ 20 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e≤ 1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArsenic (As)\u003c\/td\u003e\n\u003ctd\u003e≤ 3 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-green\"\u003e\n\u003ch4\u003eChoosing by pH\u003c\/h4\u003e\n\u003cp\u003eAlkaline or neutral base, such as soap, a bath bomb before the acid reaction, or a shampoo: this dye performs well.\u003cbr\u003e\u003cbr\u003eAcidic base below about pH 4, such as a toner or an AHA product: expect dulling or precipitation, and choose a colourant stable at low pH instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eStorage and Stability\u003c\/h4\u003e\n\u003cp\u003eStable as a dry powder under the recommended conditions. Store at 10–30 °C, tightly closed, dry and out of direct sunlight. Aqueous stock solutions should be kept in amber or opaque containers and made up fresh periodically, as the dye fades with light exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"panel p3\"\u003e\u003cdiv class=\"grid\"\u003e\n\u003cdiv\u003e\n\u003csection\u003e\u003ch3\u003eHazard Identification\u003c\/h3\u003e\n\u003cdiv class=\"info\"\u003e\u003cstrong\u003eNot classified as hazardous according to the GHS (Rev. 7) as adopted in Australia under the model WHS Regulations. Not Dangerous Goods under the ADG Code.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eFine powder can form combustible dust concentrations in air. Dust may cause mild mechanical irritation of the eyes and respiratory tract. The dye stains skin, hair, fabric and hard surfaces strongly on contact, and staining is the most common practical consequence of mishandling it.\u003c\/p\u003e\n\u003cdiv class=\"info\"\u003eThe classification above applies to the substance as supplied. It is not a statement about whether the colourant may be used in any particular finished product; that is a regulatory question addressed on the Technical Data tab.\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eComposition\u003c\/h3\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eIngredient\u003c\/th\u003e\n\u003cth\u003eCAS No.\u003c\/th\u003e\n\u003cth\u003e% w\/w\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcid Red 92 (Phloxine B), disodium salt\u003c\/td\u003e\n\u003ctd\u003e18472-87-2\u003c\/td\u003e\n\u003ctd class=\"val\"\u003e≥ 85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSodium chloride and sodium sulfate, with residual moisture\u003c\/td\u003e\n\u003ctd\u003e7647-14-5 \/ 7757-82-6\u003c\/td\u003e\n\u003ctd class=\"val\"\u003ebalance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"small\"\u003eInorganic salts and moisture are normal constituents of a commercial dye of this type and are controlled by the combined specification shown on the Technical Data tab.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eFirst Aid\u003c\/h3\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eRoute\u003c\/th\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInhalation\u003c\/td\u003e\n\u003ctd\u003eMove to fresh air. Seek medical advice if symptoms persist.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkin\u003c\/td\u003e\n\u003ctd\u003eWash with soap and water. Staining may persist for some days after the dye itself has been removed and is not in itself a sign of injury.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyes\u003c\/td\u003e\n\u003ctd\u003eRinse with water for several minutes. Seek medical advice if irritation persists.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngestion\u003c\/td\u003e\n\u003ctd\u003eRinse mouth. Do not induce vomiting. Seek medical advice if unwell.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cstrong\u003ePoisons Information Centre (Australia, 24 h): 13 11 26\u003c\/strong\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eHandling, Spills and Disposal\u003c\/h3\u003e\n\u003cul class=\"list\"\u003e\n\u003cli\u003eAvoid generating and breathing dust. Weigh in a ventilated area.\u003c\/li\u003e\n\u003cli\u003eProtect surfaces before opening the container. Dry spills spread and stain widely.\u003c\/li\u003e\n\u003cli\u003eSpills: collect dry material mechanically or by HEPA vacuum without raising dust, then wash the area. Washing a dry spill first will spread the stain.\u003c\/li\u003e\n\u003cli\u003eDispose of product and contaminated packaging under local regulations. Avoid release of concentrated dye solutions to drains.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003caside\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003ePersonal Protection\u003c\/h4\u003e\n\u003ctable class=\"specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyes\u003c\/td\u003e\n\u003ctd\u003eSafety glasses with side shields\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHands\u003c\/td\u003e\n\u003ctd\u003eNitrile gloves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eLaboratory coat or apron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRespiratory\u003c\/td\u003e\n\u003ctd\u003eP2 respirator if dust is generated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-green\"\u003e\n\u003ch4\u003eFire and Stability\u003c\/h4\u003e\n\u003cp\u003eCombustible solid. Extinguish with water spray, foam, dry powder or CO\u003csub\u003e2\u003c\/sub\u003e. Combustion of a halogenated dye produces irritating and corrosive gases, including hydrogen halides; wear self-contained breathing apparatus when fighting a fire involving this product. Stable under recommended storage. Avoid moisture, strong light and strong oxidising agents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-gold\"\u003e\n\u003ch4\u003eTransport\u003c\/h4\u003e\n\u003cp\u003eNot regulated for road, rail, sea or air transport. No UN number or Hazchem code.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eFull SDS\u003c\/h4\u003e\n\u003cp\u003eThe complete 16-section SDS is available on request from \u003ca href=\"mailto:support@ausamics.com?subject=SDS%20request%20ASD-631\"\u003esupport@ausamics.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"panel p4\"\u003e\u003cdiv class=\"grid\"\u003e\n\u003cdiv\u003e\n\u003csection\u003e\u003ch3\u003eQuality Control Specification\u003c\/h3\u003e\n\u003cdiv class=\"qc\"\u003e\n\u003cp style=\"font-size:14px\"\u003eEach batch is supplied against the following specification. Results for the specific lot are reported on the batch Certificate of Analysis.\u003c\/p\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable class=\"dark\"\u003e\n\u003ctr\u003e\n\u003cth\u003eTest\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDye content (assay)\u003c\/td\u003e\n\u003ctd\u003e≥ 85.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance\u003c\/td\u003e\n\u003ctd\u003eDark red to reddish-brown powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolatile matter plus chlorides and sulfates (as sodium salts)\u003c\/td\u003e\n\u003ctd\u003e≤ 15.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater-insoluble matter (alkaline)\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolution appearance\u003c\/td\u003e\n\u003ctd\u003eClear bluish-pink solution in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead (Pb)\u003c\/td\u003e\n\u003ctd\u003e≤ 20 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e≤ 1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArsenic (As)\u003c\/td\u003e\n\u003ctd\u003e≤ 3 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003csection\u003e\u003ch3\u003eIdentity Confirmation\u003c\/h3\u003e\n\u003cp\u003eIdentity is confirmed by the visible absorption spectrum of an aqueous solution, which shows a single absorption maximum at approximately 548 nm, together with the characteristic yellow-green fluorescence of a dilute solution.\u003c\/p\u003e\n\u003cdiv class=\"info\"\u003eDye content for a colourant of this class is reported as a percentage of the named dye, with inorganic salts and moisture making up the balance. A figure below 100% is normal and expected; it is not a measure of contamination. The specification controls the balance through the combined volatile matter, chlorides and sulfates limit.\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003caside\u003e\n\u003cdiv class=\"box s-gold\"\u003e\n\u003ch4\u003eCertificate of Analysis\u003c\/h4\u003e\n\u003cp style=\"margin-bottom:10px\"\u003eA batch-specific COA is available on request for every lot. It reports the lot number, manufacturing and expiry dates, and the results of the tests listed on this page.\u003c\/p\u003e\n\u003cp\u003eTo request a COA for a specific lot, email \u003ca href=\"mailto:support@ausamics.com?subject=COA%20request%20ASD-631\"\u003esupport@ausamics.com\u003c\/a\u003e with the lot number from your label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"box s-white\"\u003e\n\u003ch4\u003eSupply\u003c\/h4\u003e\n\u003cp\u003eSupplied by Ausamics Pty Ltd, Melbourne, Australia.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"foot\"\u003eThe information on this page is provided in good faith as a guide to the properties and use of this product and does not constitute a warranty of fitness for a particular purpose. Users are responsible for confirming suitability for their application and for compliance with the colour-additive and cosmetic regulations applying in their market. Ausamics Pty Ltd · ABN 56 676 640 467 · 36\/25 Trafalgar Road, Epping VIC 3076, Australia · support@ausamics.com\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ausamics Life Science","offers":[{"title":"25g","offer_id":48044673007871,"sku":"ASD-631-25G","price":67.0,"currency_code":"AUD","in_stock":true},{"title":"100g","offer_id":48044673040639,"sku":"ASD-631-100G","price":177.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1087\/0271\/files\/acid-red-92-phloxine-b-dc-red-28-asd-631-ausamics.avif?v=1768264618","url":"https:\/\/ausamics.com.au\/products\/acid-red-92-phloxine-b","provider":"AuSaMicS","version":"1.0","type":"link"}