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Methylene Blue MeSH Descriptor Data 2023


MeSH Heading
Methylene Blue
Tree Number(s)
D02.886.369.517
D03.633.300.783.517
Unique ID
D008751
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D008751
Scope Note
A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.
Entry Term(s)
Basic Blue 9
Chromosmon
Methylene Blue N
Methylthionine Chloride
Methylthioninium Chloride
Swiss Blue
Urolene Blue
Pharm Action
Enzyme Inhibitors
Registry Number
T42P99266K
Related Numbers
61-73-4
CAS Type 1 Name
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2018/07/05
Methylene Blue Preferred
Chromosmon Narrower
Urolene Blue Narrower
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