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New methylene blue

Compounds
New methylene blue is an organic compound of the thiazine class of heterocycles. It is used as a stain and as an antimicrobial agent. It is classified as an azine dye, and the chromophore is a cation, the anion is often unspecified. Wikipedia
Formula: C18H22N3S:SClZnCl2
Molar mass: 484.22 g/mol