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	AZURE B AZURE IDark green Crystaline powder – Water soluble used in biological stain a component of polychrome Giemsa’s stain for blood protozoa. Used for staining semi-thin sections of plant tissue. 
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	BIEBRICH SCARLETBiebrich scarlet: an acid azo dye that is used as a biological stain for cytoplasm. Fluorescent labeling of white cells in tissue samples 
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	BROMOCRESOL PURPLE ACS GRADEBromocresol purple sodium salt has been also used as a pH indicator in the yeast culture media. 
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