1-Naphthylamine-7-sulfonic acid
- CAS No.
- 119-28-8
- Chemical Name:
- 1-Naphthylamine-7-sulfonic acid
- Synonyms
- SODIUM NAPHTHIONATE;SODIUM NAPTHIONATE;C.I. 26135;CLEVE'S ACID;1.7 Clevs Acid;Cleve's O-acid;1,7-CLEVES ACID;CLEVES ACID-1,7;1,7-CLEVE'S ACID;Cleve's theta-acid
- CBNumber:
- CB0141189
- Molecular Formula:
- C10H9NO3S
- Molecular Weight:
- 223.25
- MDL Number:
- MFCD00004032
- MOL File:
- 119-28-8.mol
- MSDS File:
- SDS
Melting point | ≥300 °C(lit.) |
---|---|
Boiling point | 220°C (rough estimate) |
Density | 1.3588 (rough estimate) |
refractive index | 1.6500 (estimate) |
storage temp. | Sealed in dry,Room Temperature |
solubility | Aqueous Base (Slightly), DMSO (Slightly, Sonicated) |
form | Powder |
pka | pK1: 3.66 (25°C) |
Merck | 14,2351 |
BRN | 2115629 |
InChIKey | QEZZCWMQXHXAFG-UHFFFAOYSA-N |
CAS DataBase Reference | 119-28-8(CAS DataBase Reference) |
FDA UNII | 21QEG50798 |
NIST Chemistry Reference | 1-Naphthylamine-7-sulfonic acid(119-28-8) |
EPA Substance Registry System | 2-Naphthalenesulfonic acid, 8-amino- (119-28-8) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS05 |
---|---|
Signal word | Danger |
Hazard statements | H314 |
Precautionary statements | P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363 |
Hazard Codes | C |
Risk Statements | 34 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 2585 8/PG 3 |
WGK Germany | 2 |
TSCA | Yes |
HazardClass | 8 |
PackingGroup | III |
HS Code | 29214500 |
1-Naphthylamine-7-sulfonic acid price More Price(18)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | A7782 | 8-Amino-2-naphthalenesulfonic acid ≥97% | 119-28-8 | 25g | $75.5 | 2024-03-01 | Buy |
Sigma-Aldrich | A7782 | 8-Amino-2-naphthalenesulfonic acid ≥97% | 119-28-8 | 100g | $201 | 2024-03-01 | Buy |
TCI Chemical | A0356 | 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) | 119-28-8 | 25g | $60 | 2024-03-01 | Buy |
TCI Chemical | A0356 | 8-Amino-2-naphthalenesulfonic Acid >97.0%(HPLC)(T) | 119-28-8 | 500g | $460 | 2021-12-16 | Buy |
Alfa Aesar | J65304 | 8-Aminonaphthalene-2-sulfonic acid, 95% | 119-28-8 | 25g | $67 | 2024-03-01 | Buy |
1-Naphthylamine-7-sulfonic acid Chemical Properties,Uses,Production
Synthesis
1-Naphthylamine-7-sulfonic acid can be obtained by sulfonation, nitration, neutralization, reduction and acid precipitation of naphthalene.
Chemical Properties
Brown crystalline. 1-Aminonaphthalene-7-sulfonic acid [119- 28-8]. (8-aminonaphthalene-2-sulfonic acid), 1,7-Cleve’s acid, C10H9NO3S, Mr 223.24, is 0.5 % soluble in water at 25℃ and 3 % soluble at 100 ℃. The sodium, potassium, calcium, and magnesium salts are readily soluble in water but the barium salt is only sparingly soluble. Sulfonation with oleum at 50℃ gives 1- aminonaphthalene-4,7-disulfonic acid. Alkali fusion gives 8-amino-2-naphthol, and Bucherer-type hydrolysis gives 1-hydroxynaphthalene-7-sulfonic acid.
Uses
Intermediate of dyestuff
Uses
8-Amino-2-naphthalenesulfonic acid can be used as a reactant to synthesize:
- Fe3O4/sulfonated polyaniline composite material via chemical oxidative polymerization with aniline in the presence of magnetite (Fe3O4) nanoparticles.
- Prismatic crystals of strychnine-8-ammonio-2-naphthalenesulfonate-water by heating with strychnine in water/ethanol solvent mixture.
- 5-amino-9-dialkylamino benzo[a]phenoxazine dyes (Nile blue analogs) by condensation with N-alkyl or N-sulfo-propyl 4-arylazo-substituted 3-hydroxyaniline.
Application
1-Naphthylamine-7-sulfonic acid can be used as a dye intermediate to prepare dyes such as direct light fast blue B2RL, direct light fast red brown RTL, and sulfur blue CV.
1-Naphthylamine-7-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1of4
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12446 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 5873 | 58 |
Shaanxi Haibo Biotechnology Co., Ltd | +undefined18602966907 | qinhe02@xaltbio.com | China | 1000 | 58 |
hebei hongtan Biotechnology Co., Ltd | +86-86-1913198-3935 +8617331935328 | sales03@chemcn.cn | China | 973 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21667 | 55 |
Shanghai Zheyan Biotech Co., Ltd. | 18017610038 | zheyansh@163.com | CHINA | 3620 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29888 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 | sales@amoychem.com | China | 6387 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22968 | 58 |
View Lastest Price from 1-Naphthylamine-7-sulfonic acid manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2024-09-20 | 1-Naphthylamine-7-sulfonic acid
119-28-8
|
US $30.00 / kg | 1kg | 98% | 2000kg | hebei hongtan Biotechnology Co., Ltd | ||
2024-08-15 | 1-Naphthylamine-7-sulfonic acid
119-28-8
|
US $0.00 / kg | 1kg | 0.99 | 20 tons | Hebei Yanxi Chemical Co., Ltd. | ||
2024-04-12 | 1-Naphthylamine-7-sulfonic acid
119-28-8
|
US $0.00-0.00 / KG | 1KG | 99% | 100MT | Shaanxi Haibo Biotechnology Co., Ltd |
- 1-Naphthylamine-7-sulfonic acid
119-28-8
- US $30.00 / kg
- 98%
- hebei hongtan Biotechnology Co., Ltd
- 1-Naphthylamine-7-sulfonic acid
119-28-8
- US $0.00 / kg
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
- 1-Naphthylamine-7-sulfonic acid
119-28-8
- US $0.00-0.00 / KG
- 99%
- Shaanxi Haibo Biotechnology Co., Ltd