8-Aminonaphthalene-1,6-disulfonic acid
- CAS No.
- 129-91-9
- Chemical Name:
- 8-Aminonaphthalene-1,6-disulfonic acid
- Synonyms
- AMINO E-ACID;Amino Epsilon acid;8-Aminonaphthalene-1;8-amino-6-naphthalenedisulfonicacid;8-Aminonaphthalene-1,6-disulfonicaci;1-NAPHTHYLAMINE 3 8 DISULPHONIC ACID;8-Aminonaphthalene-1,6-disulfonic acid;1-Aminonaphthalene-3,8-disulfonic acid;8-Amino-1,6-naphthalenedisulfonic acid;8-azanylnaphthalene-1,6-disulfonic acid
- CBNumber:
- CB3355851
- Molecular Formula:
- C10H9NO6S2
- Molecular Weight:
- 303.31
- MDL Number:
- MFCD00021548
- MOL File:
- 129-91-9.mol
- MSDS File:
- SDS
| Density | 1.769±0.06 g/cm3(Predicted) |
|---|---|
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| pka | -1.03±0.40(Predicted) |
| CAS DataBase Reference | 129-91-9(CAS DataBase Reference) |
| FDA UNII | 9XW28UDP7F |
| EPA Substance Registry System | 1,6-Naphthalenedisulfonic acid, 8-amino- (129-91-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS07,GHS08,GHS09 |
|---|---|
| Signal word | Danger |
| Hazard statements | H302-H410-H372 |
| Precautionary statements | P264-P270-P273-P301+P312-P330 |
8-Aminonaphthalene-1,6-disulfonic acid price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| American Custom Chemicals Corporation | ING0002147 | 8-AMINO-1,6-NAPHTHALENEDISULFONIC ACID SODIUM SALT 95.00% | 129-91-9 | 50G | $3250.17 | 2021-12-16 | Buy |
| Chemenu | CM141262 | 8-Aminonaphthalene-1,6-disulfonicacid 95% | 129-91-9 | 5g | $297 | 2021-12-16 | Buy |
| Crysdot | CD41002110 | 8-Aminonaphthalene-1,6-disulfonicacid 95+% | 129-91-9 | 5g | $314 | 2021-12-16 | Buy |
| AHH | MT-46129 | 8-Amino-1,6-naphthalenedisulfonicacidsodiumsalt 98% | 129-91-9 | 50g | $580 | 2021-12-16 | Buy |
8-Aminonaphthalene-1,6-disulfonic acid Chemical Properties,Uses,Production
Chemical Properties
1-Aminonaphthalene-3,8-disulfonic acid [129-91-9]. (8-aminonaphthalene-1,6- disulfonic acid), amino epsilon acid, C10H9NO6S2, Mr 303.3, and its sodium salt are very soluble in water, but the barium salt is only sparingly soluble. Reduction with zinc and alkali (or with sodium amalgam) desulfonates to give 1-aminonaphthalene-3-sulfonic acid. The amino group is hydrolyzed by water at 180℃ to give 1-hydroxynaphthalene-3,8-disulfonic acid. Caustic fusion results in 1-amino-8-hydroxynaphthalene-3-sulfonic acid, whereas reaction with 10 % sodium hydroxide at 250℃ produces 1,8-dihydroxynaphthalene-3-sulfonic acid. Amination produces 1,3-diaminonaphthalene-8-sulfonic acid, but the production of 6,8- di(phenylamino)naphthalene-1-sulfonic acid (diphenyl epsilon acid) by reaction with aniline is more important.
Uses
Amino e acid is used mainly as an intermediate rather than as a color component, but the derived diphenyl e acid is used for safranine dyes such as C.I. Acid Blue 61.
Production Methods
Naphthalene is sulfonated under conditions that give predominately the 1,6- disulfonic acid. The sulfonation mass is nitrated with H2SO4–HNO3 at 30 – 40 ℃. After addition of dolomite and neutralization with lime, the liquor is reduced with iron and basified with magnesia, and the iron residues are removed. Careful adjustment of temperature and acidity precipitates the product as the acid magnesium salt, which is purified by dissolution in aqueous sodium carbonate and removal of magnesium carbonate; the diacid is precipitated with acid in 32 % overall yield.
8-Aminonaphthalene-1,6-disulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
8-Aminonaphthalene-1,6-disulfonic acid Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 | sales@sdzschem.com | China | 2930 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49732 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29808 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 22854 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-027-59207850 | info@fortunachem.com | China | 5974 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52849 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; +86-85511178; | peter68@ptchemgroup.com | China | 35425 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +8618058761490 | info@gihichemicals.com | China | 49984 | 58 |
View Lastest Price from 8-Aminonaphthalene-1,6-disulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-04-24 | 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
|
US $0.00 / KG | 1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2022-08-31 | 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
|
US $1.10 / g | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2020-02-26 | 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
|
US $0.00-0.00 / KG | 1KG | 99.0%+ | 100 tons | Shaanxi Dideu Medichem Co. Ltd
|
-
- 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
- US $0.00 / KG
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
-
- 8-Aminonaphthalene-1,6-disulfonic acid
129-91-9
- US $0.00-0.00 / KG
- 99.0%+
- Shaanxi Dideu Medichem Co. Ltd
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