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Methyl blue

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Revision as of 13:28, 3 December 2010 by CheMoBot (talk | contribs) (Updating {{chembox}} (no changed fields - added verified revid - updated 'UNII_Ref', 'ChemSpiderID_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref') per Chem/Drugbox validation (report [[Wikipedia_talk:Wi)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)
Methyl blue
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.044.852 Edit this at Wikidata
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C37H29N3O9S3.2Na/c41-50(42,43)34-19-13-31(14-20-34)38-28-7-1-25(2-8-28)37(26-3-9-29(10-4-26)39-32-15-21-35(22-16-32)51(44,45)46)27-5-11-30(12-6-27)40-33-17-23-36(24-18-33)52(47,48)49;;/h1-24,38-39H,(H,41,42,43)(H,44,45,46)(H,47,48,49);;/q;2*+1/p-2Key: MCPLVIGCWWTHFH-UHFFFAOYSA-L
  • InChI=1/C37H29N3O9S3.2Na/c41-50(42,43)34-19-13-31(14-20-34)38-28-7-1-25(2-8-28)37(26-3-9-29(10-4-26)39-32-15-21-35(22-16-32)51(44,45)46)27-5-11-30(12-6-27)40-33-17-23-36(24-18-33)52(47,48)49;;/h1-24,38-39H,(H,41,42,43)(H,44,45,46)(H,47,48,49);;/q;2*+1/p-2Key: MCPLVIGCWWTHFH-NUQVWONBAI
SMILES
  • ..S(=O)(=O)c1ccc(cc1)Nc2ccc(cc2)/C(=C\4/C=C\C(=/c3ccc(cc3)S()(=O)=O)/C=C/4)c6ccc(Nc5ccc(cc5)S()(=O)=O)cc6
Properties
Chemical formula C37H27N3Na2O9S3
Molar mass 799.814 g/mol
Solubility in water ~ 300 g/l (20 °C)
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Methyl blue, also known as Cotton blue, Helvetia blue, Acid blue 93, or C.I. 42780, is a chemical compound with the molecular formula C37H27N3Na2O9S3. It is used as a stain in histology. Methyl blue stains collagen blue in tissue sections. It is soluble in water and slightly soluble in ethanol. It can be used in the Mallory's connective tissue stain and Gömöri trichrome stain. It is used in differential staining. It can also be used to mediate electron transfer in microbial fuel cells.

Methyl blue is also used to stain fungal cell walls. Methyl blue is also available in mixture with water blue, under name Aniline Blue WS, Aniline blue, China blue, or Soluble blue.

Methyl blue should not be confused with methyl violet or methylene blue, two other stains.

Methyl blue is also used to treat thallium poisoning. It binds to the thallium.

See also


References

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Microbial and histological stains
Iron/hemosiderin
Lipids
Carbohydrates
Amyloid
Bacteria
Connective tissue
Other
Tissue stainability
Categories: