Synonyms: 2,7-Naphthalenedisulfonicacid,5-amino-3-[[4'-[[2,4-diamino-5-[[3-[(2,4-diaminophenyl)azo]phenyl]azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-,disodium salt (9CI); C.I. Direct Brown 127, disodium salt (8CI); Benzamin DarkBrown GS; C.I. 35210; C.I. Direct Brown 127; Diazo Brown G