IUPAC Name: sodium;(6Z)-4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-[[4-[4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonic acid Synonyms: Apomine Green B, Azocard Green B, Azomine Green B, Diazine Green B, Enianil Green B, Fenamin Green A, Fenamin Green B, Fenamin Green G, Amanil Green B, Cotton Green B, Diazol Green B, Direct Green A, Direct Green B, Nippon Green B, Bencidal Green B, Benzanil Green B, Benzo Green B, Diazol Green BJ, Diphenyl Green C, Direct Green BN