91-34-9

Direct Yellow 4 dye 75508-33-7 (Di-potassium salt) 68966-53-0 (Hydrochloride salt) 3051-11-4 (Di-hydrochloride salt) 75673-23-3 (Potassium.hydrochloride salt) 79069-96-8 (Potassium.hydrochloride salt) 4,4''-Vinylenebis(4'-hydroxyazobenzene-3-sulfonic acid) 4,4'-Bis(4-hydroxyphenylazo)stilbene-2,2'-disulfonic acid 4,4'-Bis(p-hydroxyphenylazo)-2,2'-stilbenedisulfonic acid 4,4'-Bis[(4-hydroxyphenyl)azo]-2,2'-stilbenedisulfonic acid 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid 2,2'-(1,2-Ethenediyl)bis[5-(4-hydroxyphenylazo)benzenesulfonic acid] Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-hydroxyphenyl)azo)- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-(2-(4-hydroxyphenyl)diazenyl)-