New methylene blue
From Wikipedia, the free encyclopedia
| 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 |
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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.

