英文别名:
Direct Black 56;Direct Fast Greay RLN;Direct black 56 (C.I. 34170);Grey LBN;2-Naphthalenesulfonic acid, 5 (or 8)-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo], trisodium salt;Atul Direct Light Fast Grey BR;Dinamine Fast Grey BR;Direct Fast Black LBN