2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt 6428-31-5 Artificial Silk Black G Artificial Silk Black GN Artificial Silk Black GR Atlantic Artificial Silk Black G Bali Viscose Black G Bali Viscose Black N Bencidal Fast Black G Benzanil Fast Black G Benzo Fast Black G Benzoform Black RRA-CF C.I. 35255 C.I. Direct Black 19 C.I. Direct Black 19, disodium salt Chlorazol Viscose Black B Chrome Leather Black GNA Columbia Fast Black G Columbia Fast Black GB Coranil Direct Black B Cutamin Black CG Diamine Fast Black B Diaphtamine Fast Black KG Direct Artificial Silk Black G Direct Black 19 Direct Fast