Methylene blue

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Methylene blue
Chemical formula C16H18ClN3S
Molar Mass(g/mol) 319.85
NFPA 704
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Uses

Primary

  • Pharm: WHO LEM treatment for cyanide poisoning
  • Pharm: treatment for aniline toxicity

Natural occurrence

Hazards

Production

Extraction

Synthesis

This compound may be prepared by treating dimethyl-4-phenylenediamine with hydrogen sulfide dissolved in hydrochloric acid, followed by oxidation with iron (III) chloride:[1]

See Also

References

  1. Michaelis, L.; Schubert, M. P.; Granick, S. (1940) "Semiquinone Radicals of the Thiazines"
    J. Am. Chem. Soc. 62(1); pp204–211. 
    DOI:10.1021/ja01858a060
    link courtesy ACS.