New methylene blue

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New methylene blue
Identifiers
CAS number [6586-05-6]
SMILES [Cl-].Cl[Zn]Cl.CCNc1cc2[s+]c3cc(NCC)c(C)cc3nc2cc1C
Properties
Molecular formula C18H22N3S:SCl ZnCl2
Molar mass 484.22 g/mol
Melting point

239 °C

Boiling point

Decomposes

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

New methylene blue (also NMB) is an organic staining agent used in diagnostic cytology and histopathology, typically for staining immature red blood cells. It is closely related to methylene blue, an older stain already in wide use.

New methylene blue is toxic. Skin contact or inhalation should be avoided.