tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate
tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate;CI 27755;2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-7-sulfo-4-(4-sulfophenyl)azo-1-naphthalenylazo-, tetrasodium salt;BLACK NO.2;BLACK7984;6-Amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphtyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt;C.I.Food Black 2;2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((sulfophenyl)azo)-1-naphthalenyl- )azo)-, tetrasodium salt
