The Complete List of Suppliers for Chromate(2-), (7-amino-4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenesulfonato(3-))(1-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, dihydrogen,compd. with 2,2-iminobis(ethanol) (1:2)