CAS No 73003-25-5 , Chromate(2-), (4-(4,5-dihydro-4-((2-(hydroxy-kappaO)-5-methyl-3-nitrophenyl)azo-kappaN1)-3-methyl-5-(oxo-kappaO)-1H-pyrazol-1-yl)benzenesulfonato(3-))(2,4-dihydro-4-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)-, dihydrogen, compd. with 2,2-iminobis(ethanol) (1:2)