Synonyms: 1-[2,4-Dimethyl-5-[[4-(methylamino)-1-anthraquinonyl]amino]benzyl]-1,1-dimethylhydrazoniumchloride (7CI); Hydrazinium,1-[2,4-dimethyl-5-[[4-(methylamino)-1-anthraquinonyl]amino]benzyl]-1,1-dimethyl-,chloride (8CI); Hydrazinium, 1-[[5-[[9,10-dihydro-9,10-dioxo-4-(methylamino)-1-anthracenyl]amino]-2,4-dimethylphenyl]methyl]-1,1-dimethyl-,chloride (9CI)