Safety Reference
Warning
H302Harmful if swallowed
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Methylene Blue trihydrate
Bacteriological stain and dye
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This compound is a phenothiazinium dye, commonly used as a biological stain. It is supplied as a chloride salt in hydrated form.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;hydrate
WQVSELLRAGBDLX-UHFFFAOYSA-M
CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.O.[Cl-]