Methyl Green
Title: Methyl Green
CAS Registry Number: 14855-76-6
CAS Name: 4-[[4-(Dimethylamino)phenyl][4-(dimethylimino)-2,5-cyclohexadien-1-ylidene]methyl]-N-ethyl-N,N-dimethylbenzenaminium bromide chloride
Additional Names: C.I. 42590; ethyl green
Molecular Formula: C27H35BrClN3
Molecular Weight: 516.94
Percent Composition: C 62.73%, H 6.82%, Br 15.46%, Cl 6.86%, N 8.13%
Literature References: Usually sold as the double salt with ZnCl2. Prepn: Colour Index vol. 4 (3rd ed., 1971) p 4394.
Properties: Green powder. Sol in water. Yellow soln in conc H2SO4, turning green on dilution.
NOTE: The term methyl green also applies to the trimethyl analog.
Use: Dyeing and printing textiles; as biological stain.

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