New_methylene_blue
New methylene blue
A substance used as a blue dye or stain and as a medication
New methylene blue (also NMB)[clarify] 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.[1]