72987-04-3

Chromate(3-),[8-[2-[5-chloro-2-(hydroxy-kO)phenyl]diazenyl-kN1]-7-(hydroxy-kO)-1,3-naphthalenedisulfonato(4-)][1-[2-[2-(hydroxy-kO)-4-nitrophenyl]diazenyl-kN1]-2-naphthalenolato(2-)-kO]-, hydrogen (1:3)