ChemicalBook >> CAS DataBase List >>amino-R acid
amino-R acid
- CAS No.
- 92-28-4
- Chemical Name:
- amino-R acid
- Synonyms
- amino-R acid;Amido R acid;2-Aminonaphthalene-3,6-disulfonic acid;3-aminonaphthalene-2,7-disulfonic acid;3-aminonaphthalene-2,7-disulphonic acid;2-amino-3,6-naphthalenedisulphonic acid;3-azanylnaphthalene-2,7-disulfonic acid;2,7-Naphthalenedisulfonic acid, 3-amino-
- CBNumber:
- CB8875802
- Molecular Formula:
- C10H9NO6S2
- Molecular Weight:
- 303.31
- MDL Number:
- MFCD00065332
- MOL File:
- 92-28-4.mol
Last updated:2023-11-06 11:23:10
Density | 1.769±0.06 g/cm3(Predicted) |
---|---|
pka | -0.93±0.40(Predicted) |
FDA UNII | 6QL4K5946T |
EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 3-amino- (92-28-4) |
amino-R acid price
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
American Custom Chemicals Corporation | CHM0291212 | 2-NAPHTHYLAMINE-3,6-DISULFONIC ACID 97.00% | 92-28-4 | 1G | $1083.39 | 2021-12-16 | Buy |
American Custom Chemicals Corporation | CHM0291212 | 2-NAPHTHYLAMINE-3,6-DISULFONIC ACID 97.00% | 92-28-4 | 2.5KG | $6675.9 | 2021-12-16 | Buy |
amino-R acid Chemical Properties,Uses,Production
Uses
Amino R acid is used mainly as an intermediate for conversion to 2-amino-3-hydroxynaphthalene-6-sulfonic acid by caustic fusion at 250℃.
Uses
Manufacture of dyes.
Production Methods
The sodium salt of 2-hydroxynaphthalene-3,6-disulfonic acid is aminated by heating with ammonia and ammonium bisulfite for 24 h at 160℃. The charge is added to excess lime and heated to remove excess ammonia, and calcium sulfite is filtered off. The productis precipitated by acidification ofthe filtrate and purified by redissolving the paste in alkali and reprecipitating with acid. The yield is 90 %.
amino-R acid Preparation Products And Raw materials
Raw materials
Preparation Products
BRILLIANT PURPURIN R
C.I.Reactive Yellow 26
3-Amino-4-[[4'-[(2-amino-8-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt
2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt
2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt
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Global( 3)Suppliers
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 15229059051 | 1027@dideu.com | China | 9968 | 58 |
Supplier | Advantage |
---|---|
Hubei Jusheng Technology Co.,Ltd. | 58 |
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 58 |
92-28-4(amino-R acid)Related Search:
1of4
3-aminonaphthalene-2,7-disulphonic acid
amino-R acid
3-aminonaphthalene-2,7-disulfonic acid
Amido R acid
2,7-Naphthalenedisulfonic acid, 3-amino-
3-azanylnaphthalene-2,7-disulfonic acid
2-Aminonaphthalene-3,6-disulfonic acid
2-amino-3,6-naphthalenedisulphonic acid
92-28-4