74186-17-7 | trisodium 5-[[5-methyl-4-[(4-nitro-2-sulphonatophenyl)azo]-2-(3-sulphonatopropoxy)phenyl]azo]salicylate | C23H21 N5 O12 S2 . 3 Na |
74186-16-6 | 2-[[4-[ethyl(2-hydroxyethyl)amino]phenyl]azo]-6-methoxy-3-methylbenzothiazolium hydrogen sulphate | C19H23N4O6S2- |