Einecs 281-454-9

3H-Indolium, 1,3,3-trimethyl-2-[[methyl[ 4-(phenylazo)phenyl]hydrazono]methyl]-, sulfate (1:1)

1,3,3-trimethyl-2-[[methyl[4-(phenylazo)phenyl]hydrazono]methyl]-3H-indolium hydrogen sulphate