ChemicalBook > CAS DataBase List > 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid

4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid

Product Name
4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
CAS No.
91-34-9
Chemical Name
4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
Synonyms
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(p-hydroxyphenylazo)-2,2'-stilbenedisulfonic acid;4,4'-Bis(4-hydroxyphenylazo)stilbene-2,2'-disulfonic acid;4,4'-Bis[(4-hydroxyphenyl)azo]-2,2'-stilbenedisulfonic acid
CBNumber
CB6898643
Molecular Formula
C26H20N4O8S2
Formula Weight
580.59
MOL File
91-34-9.mol
More
Less

4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Property

Density 
1.50±0.1 g/cm3(Predicted)
pka
-1.29±0.50(Predicted)
EPA Substance Registry System
C.I. Direct Yellow 4 (91-34-9)
More
Less

Hazard and Precautionary Statements (GHS)

4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Suppliers

China 1 India 1 United States 1 Global 3
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
Tel
15229059051
Email
1027@dideu.com
Country
China
ProdList
9941
Advantage
58

91-34-9, 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acidRelated Search:


  • 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
  • Direct Yellow 4 dye
  • 2,2'-(1,2-Ethenediyl)bis[5-(4-hydroxyphenylazo)benzenesulfonic 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''-Vinylenebis(4'-hydroxyazobenzene-3-sulfonic acid)
  • 3051-11-4 (Di-hydrochloride salt)
  • 68966-53-0 (Hydrochloride salt)
  • 75508-33-7 (Di-potassium salt)
  • 75673-23-3 (Potassium.hydrochloride salt)
  • 79069-96-8 (Potassium.hydrochloride salt)
  • 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)-
  • 91-34-9