3051-11-4 4,4'-Bis((4-hydroxyphenyl)azo)stilbene-2,2'-disulphonic acid 68966-53-0 75508-33-7 75673-23-3 79069-96-8 91-34-9 Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-hydroxyphenyl)azo)- C.I. Direct Yellow 4 CCRIS 771 Direct Yellow 4 dye EINECS 202-062-6