90294-71-6

Chromium, 2,5-dichloro-4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonate potassium sodium complexes