Methyl Blue
Structural Formula Vector Image
Title: Methyl Blue
CAS Registry Number: 28983-56-4
CAS Name: [[4-[Bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]benzenesulfonic acid disodium salt
Additional Names: sodium triphenyl-p-rosanilinetrisulfate; brilliant cotton blue; Helvetia blue; C.I. Acid Blue 93; C.I. 42780
Molecular Formula: C37H27N3Na2O9S3
Molecular Weight: 799.80
Percent Composition: C 55.56%, H 3.40%, N 5.25%, Na 5.75%, O 18.00%, S 12.03%
Literature References: Do not confuse with methylene blue. Prepn: Colour Index vol. 4 (3rd ed., 1971) p 4403.
Properties: Dark blue powder. Sol in water. Absorption max about 607 nm.
Absorption maximum: Absorption max about 607 nm
Use: As a coloring; dye for cotton and silk; biological stain.
Therap-Cat: Antiseptic.
Keywords: Antiseptic/Disinfectant; Dyes.

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