C.I.34179;Vopsider Grey DL.;Direct Fast Grey L;Diazol Light Grey 4B;C.I.Direct Black 103;Direct Fast Black 2B;Direct Grey Light Fast;1, 5-Naphthalenedisulfonic acid, 3-[[4-[[4-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)-azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo], tetrasodium salt;3-[[4-[[4-[(7-Amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt
