methyl blue


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meth·yl blue

[C.I. 42780]
A sulfonated triphenylrosaniline dye used as a stain for cytoplasm, collagen, and Negri bodies, and as an antiseptic.

methyl blue

a blue dye of the triarylmethane class, C37H27N3O9S3Na2, used alone or in combination with water blue as a biological stain.