Synonyms: | 1,5-Naphthalenedisulfonicacid,3-[[4-[[4-[[8-[(2,4-diamino-5-nitrophenyl)azo]-1-hydroxy-5-sulfo-2-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-,tetrasodium salt (9CI); C.I. Direct Black 76, tetrasodium salt (8CI); C.I.35865; Sirius Grey GB |