Wright Stain
 
Wright stain
Stains, biological,Wright's
[7-(Dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;2-(2,4,5,7-tetrabromo-3,6-dihydroxyxanthen-10-ium-9-yl)benzoic acid
Tache de Wright
 
Catalog Number: ASC-1037
CAS Number: 68988-92-1
MW: –
MF: –
 
Wright Stain is a commonly used stain in clinical pathology for differentiating between Gram-positive and Gram-negative microorganisms. The stain combines eosin and safranin, two dyes that interact differently with the cell walls of these two major bacterial groups. Gram-negative bacteria typically appear red or pink, while Gram-positive bacteria show up blue or purple. This color distinction is vital for determining appropriate antibiotic treatment. However, Wright’s stain is not suitable for identifying fungal infections or viruses, as it does not bind to DNA in some cases. It is primarily used to distinguish between Gram-positive and Gram-negative bacteria in microbiological studies.