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A substance used as a blue dye or stain and as a medication From Wikipedia, the free encyclopedia
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]
Identifiers | |
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3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.026.833 |
PubChem CID |
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UNII | |
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Properties | |
C18H22N3S:SCl ZnCl2 | |
Molar mass | 484.22 g/mol |
Melting point | 239 °C (462 °F; 512 K) |
Boiling point | Decomposes |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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NMB is a staining agent used in diagnostic cytopathology and histopathology, typically for staining immature red blood cells. It is a supravital stain.[2] It is closely related to methylene blue, an older stain in wide use.
New methylene blue is toxic. Skin contact or inhalation should be avoided.
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