72623-96-2 Chromium, N-(3-((8-(acetylamino)-2-hydroxy-1-naphthalenyl)azo)-2-hydroxy-5-nitrophenyl)acetamide N-(7-hydroxy-8-((2-hydroxy-5-((methylamino)sulfonyl)phenyl)azo)-1-naphthalenyl)acetamide complexes