Name1,3-Benzenediamine,[2-[3-methyl-4-[2-[3-(methylammonio)phenyl]diazenyl]phenyl]diazenyl](2-phenyldiazenyl)-,chloride (1:1) CAS83803-99-0 SynonymsBenzenaminium,3-[[4-[[diamino(phenylazo)phenyl]azo]-2-methylphenyl]azo]-N,N,N-trimethyl-,chloride (9CI); HC Brown 2; HC Brown No. 2 EINECS(EC#)280-920-9 Molecular FormulaC28H30 N9 . Cl Molecular Weight528.0511