ChemicalBook >> CAS DataBase List >>2-Aminonaphthalene-7-sulfonic acid
2-Aminonaphthalene-7-sulfonic acid
- CAS No.
- 494-44-0
- Chemical Name:
- 2-Aminonaphthalene-7-sulfonic acid
- Synonyms
- amino-F acid;2-Naphthylamine-7-sulfonic acid;2-Amino-7-naphthalenesulfonic acid;7-Amino-2-naphthalenesulfonic acid;7-aminonaphthalene-2-sulfonic acid;7-aminonaphthalene-2-sulphonic acid;7-azanylnaphthalene-2-sulfonic acid;2-Naphthalenesulfonic acid, 7-amino-
- CBNumber:
- CB7875340
- Molecular Formula:
- C10H9NO3S
- Molecular Weight:
- 223.25
- MDL Number:
- MFCD00021650
- MOL File:
- 494-44-0.mol
Last updated:2023-11-03 13:26:31
| Density | 1.3588 (rough estimate) |
|---|---|
| refractive index | 1.6500 (estimate) |
| pka | -0.16±0.40(Predicted) |
| Water Solubility | 0.2g/L(20 ºC) |
| FDA UNII | 96SWF64YC2 |
2-Aminonaphthalene-7-sulfonic acid Chemical Properties,Uses,Production
Chemical Properties
2-Aminonaphthalene-7-sulfonic acid [494- 44-0]. (7-aminonaphthalene-2-sulfonic acid), amido F acid, C10H9NO3S, Mr 223.24, crystallizes as the monohydrate in needles or prisms although only 0.3 % soluble at 100℃. Bromination gives the 1-bromo derivative, caustic fusion results in 7-amino-2-naphthol, and sulfonation with oleum gives a mixture of disulfonic acids.
Production Methods
2-Hydroxynaphthalene-7-sulfonic acid is aminated by a Bucherer reaction under conditions similar to those used for Tobias acid.
2-Aminonaphthalene-7-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
C.I. Direct red 74
2-Naphthalenesulfonic acid, amino[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, monosodium salt
2-Naphthalenesulfonic acid, 8,8'-[carbonylbis[imino(2-sulfo-4,1-phenylene)azo]]bis[7-(methylamino)-, tetrasodium salt
6-Amino-5-[[4'-[(2-amino-7-sulfo-1-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2-naphthalenesulfonic acid disodium salt
Global( 2)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Supplier | Advantage |
|---|---|
| Hubei Jusheng Technology Co.,Ltd. | 58 |
7-aminonaphthalene-2-sulphonic acid
amino-F acid
7-aminonaphthalene-2-sulfonic acid
2-Naphthylamine-7-sulfonic acid
7-Amino-2-naphthalenesulfonic acid
2-Amino-7-naphthalenesulfonic acid
7-azanylnaphthalene-2-sulfonic acid
2-Naphthalenesulfonic acid, 7-amino-
494-44-0