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CAS 61-73-4

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Methylene blue

Description:
Methylene blue is a synthetic dye and a chemical compound with the CAS number 61-73-4. It appears as a dark blue crystalline powder that is soluble in water, forming a blue solution. Methylene blue is primarily known for its use in biological staining, as it can selectively stain certain cellular components, making it valuable in microscopy and histology. It has a molecular formula of C16H18ClN3S and a molecular weight of approximately 319.85 g/mol. In addition to its staining properties, methylene blue has applications in medicine, particularly as a treatment for methemoglobinemia, a condition where hemoglobin is unable to effectively release oxygen to tissues. It also exhibits antioxidant properties and has been investigated for potential neuroprotective effects. However, it can cause side effects, including skin irritation and allergic reactions in some individuals. Methylene blue should be handled with care, as it can stain skin and fabrics.
Formula:C16H18N3S·Cl
InChI:InChI=1S/C16H18N3S.ClH/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;/h5-10H,1-4H3;1H/q+1;/p-1
InChI key:InChIKey=CXKWCBBOMKCUKX-UHFFFAOYSA-M
SMILES:N(C)(C)C1=CC2=C(N=C3C(=[S+]2)C=C(N(C)C)C=C3)C=C1.[Cl-]
Synonyms:
  • 3,7-Bis(Dimethylamino)Phenazathionium Chloride
  • 3,7-Bis(dimethylamino)-5λ4-phenothiazin-5-ylium chloride
  • 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride
  • Aizen Methylene Blue BH
  • Aizen Methylene Blue FZ
  • Basic Blue 2B
  • Basic Blue 9
  • Basic Lake Blue
  • Bivn 401
  • Calcozine Blue ZF
  • See more synonyms
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