1-Butanaminium, N-(4-((4-(butyl(2-sulfoethyl)amino)phenyl)(4-((4-ethoxyphenyl)amino)phenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-(2-sulfoethyl)-, inner salt, monosodium salt 5863-47-8 C.I. Acid Blue 100 EINECS 227-512-9 Hydrogen N-(4-((4-(butyl(2-sulphonatoethyl)amino)phenyl)(4-((4-ethoxyphenyl)amino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)-N-(2-sulphonatoethyl)butylammonium, monosodium salt