Safranin O is a biological stain commonly used as a counter stain for gram-negative bacteria in the Gram stain procedure. Safranin O has been observed to bind to DNA at a pH 2.21. In the Flemming triple stain procedure Safranin O is used to stain for chromosomes. In late Palaeozoic pteridosperm…

Used in Gram staining

Counterstain for use with Carbol Fuchsin Stain for the identification of AFB

Counterstain for use with Carbol Fuchsin Stain for the identification of AFB Sold as .5 units of Solution A and .5 units of Solution B