Chromate(5-),bis[4-amino-5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]-1,7-naphthalenedisulfonato(4-)]-,pentasodium (9CI); 1,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]-, chromium complex
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