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
![4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Structure](CAS/GIF/91-34-9.gif)
- 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
- Molecular Weight:
- 580.59
- MDL Number:
- MOL File:
- 91-34-9.mol
Last updated:2023-07-12 16:55:50
| Density | 1.50±0.1 g/cm3(Predicted) |
|---|---|
| pka | -1.29±0.50(Predicted) |
| FDA UNII | 35KMX2FK8K |
| EPA Substance Registry System | C.I. Direct Yellow 4 (91-34-9) |
4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Suppliers
Global( 3)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 15229059051 | 1027@dideu.com | China | 9946 | 58 |
| Supplier | Advantage |
|---|---|
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 58 |
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