1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-5-hydroxy-6-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalenyl)azo)-, tetrasodium salt 1,7-Naphthalenedisulfonic acid, 4-acetamido-5-hydroxy-6-((7-sulfo-4-((p-sulfophenyl)azo)-1-naphthyl)azo)-, tetrasodium salt 1743 Black 2-(4-(p-Sulfophenylazo)-7-sulfo-1-naphthylazo)-8-acetamido-1-naphthol-3,5-di-sulonic acid, tetrasodium salt 2519-30-4 Black PN Blue Black BN Brilliant Acid Black BN Extra Pure A Brilliant Acid Black BNA Export Brilliant Black Brilliant Black A Brilliant Black BN Brilliant Black N. FQ Brilliant Black NAF Brilliant black 1 Brilliantschwarz BN [German] C.I. 28440 C.I. FOOD BLACK 1 C.I. Food Black 1, tetrasodium salt CCRIS 113 CERN brilantni PN [Czech] CERN potravinarska 1 [Czech] CI 28440 Certicol Black PNW Cilefa Black B E 151 EINECS 219-746-5 Edicol Supra Black BN Food black 1 Hexacol Black PN