ChemicalBook >> CAS DataBase List >>2-Amino-1,5-naphthalenedisulfonic acid
2-Amino-1,5-naphthalenedisulfonic acid
- CAS No.
- 117-62-4
- Chemical Name:
- 2-Amino-1,5-naphthalenedisulfonic acid
- Synonyms
- SULFO TOBIAS ACID;D SALT;5-sulfo-tobiasaci;SULPHOTOBIAS ACID;Sulfonic Tobias Acid;Sulfo Tobias Acid(STA);kyselinasulfo-tobiasova;Sulfonated trimeric acid;2-amino-1,5-naphthalenedisulfonic;2-amino-5-naphthalenedisulfonicacid
- CBNumber:
- CB0704041
- Molecular Formula:
- C10H9NO6S2
- Molecular Weight:
- 303.31
- MDL Number:
- MFCD00021512
- MOL File:
- 117-62-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-27 22:51:37
| Product description | Number | Pack Size | Price |
| 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID AldrichCPR | S458813 | 1 unit | $197 |
| 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID Aldrich | S458813 | 250mg | $179 |
| 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 260073 | 1g | $312 |
| 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 260073 | 2g | $420 |
| 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 260073 | 5g | $552 |
| More product size | |||
| Boiling point | 205.8°C (rough estimate) |
|---|---|
| Density | 1.6329 (rough estimate) |
| refractive index | 1.7330 (estimate) |
| storage temp. | 2-8°C |
| pka | -0.51±0.40(Predicted) |
| Water Solubility | soluble |
| InChI | InChI=1S/C10H9NO6S2/c11-8-5-4-6-7(10(8)19(15,16)17)2-1-3-9(6)18(12,13)14/h1-5H,11H2,(H,12,13,14)(H,15,16,17) |
| InChIKey | YAIKCRUPEVOINQ-UHFFFAOYSA-N |
| SMILES | C1(S(O)(=O)=O)=C2C(C(S(O)(=O)=O)=CC=C2)=CC=C1N |
| LogP | -1.85 |
| CAS DataBase Reference | 117-62-4(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 1F5J76WY2D |
| EPA Substance Registry System | 1,5-Naphthalenedisulfonic acid, 2-amino- (117-62-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319 | |||||||||
| Precautionary statements | P305+P351+P338 | |||||||||
| Hazard Codes | Xi,C | |||||||||
| Risk Statements | 36-34 | |||||||||
| Safety Statements | 26-28A | |||||||||
| RIDADR | 1759 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | QJ6135000 | |||||||||
| F | 8-10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| Toxicity | LD50 oral in rat: 5430mg/kg | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
2-Amino-1,5-naphthalenedisulfonic acid price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S458813 | 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID AldrichCPR | 117-62-4 | 1 unit | $197 | 2026-04-30 | Buy |
| Sigma-Aldrich | S458813 | 2-AMINO-1,5-NAPHTHALENEDISULFONIC ACID Aldrich | 117-62-4 | 250mg | $179 | 2024-03-01 | Buy |
| Usbiological | 260073 | 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 117-62-4 | 1g | $312 | 2026-06-03 | Buy |
| Usbiological | 260073 | 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 117-62-4 | 2g | $420 | 2026-06-03 | Buy |
| Usbiological | 260073 | 2-Amino-1,5-naphthalenedisulfonic acid Asreported | 117-62-4 | 5g | $552 | 2026-06-03 | Buy |
2-Amino-1,5-naphthalenedisulfonic acid Chemical Properties,Uses,Production
Description
2-Aminonaphthalene-1,5-disulfonic acid [117-62-4]. 5-sulfo-Tobias acid, C10H9NO6S2, Mr 303.32, is purified by crystallization of the dipotassium salt from water. Alkali fusion results in formation of 2-amino-5-hydroxynaphthalene-1-sulfonic acid. Sulfonation (40 % oleum, 100℃) gives 2-aminonaphthalene-1,5,7-trisulfonic acid. Heating with aqueous sulfuric acid produces 2-aminonaphthalene-5- sulfonic acid. The diazo compound is converted to 2-diazo-1-hydroxynaphthalene-5-sulfonic acid on treatment with alkaline hypochlorite.
Chemical Properties
BEIGE POWDER
Uses
As a diazo component in orange and red azo reactive dyes, 2-Amino-1,5-naphthalenedisulfonic acid gives more bathochromic shades than Tobias acid.
Production Methods
Sulfonation of Tobias acid to produce 2-aminonaphthalene-5-sulfonic acid proceeds via 2-Aminonaphthalene-1,5-disulfonic acid, which is isolated from the quenched reaction mixture with careful avoidance of desulfonation.
2-Amino-1,5-naphthalenedisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
6-AMINO-1-NAPHTHOL
2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid
6-Amino-1-naphthalenesulfonic acid
REACTIVE ORANGE 84
trisodium 2-[[6-[(4,6-dichloro-1,3,5-triazin-2-yl)methylamino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate
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Global( 221)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5220 | 58 |
| Qingdao RENAS Polymer Material Co., Ltd. | +86-0532-86867058 +86-18562606086 | sales@qdrenas.com | China | 1066 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6366 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
View Lastest Price from 2-Amino-1,5-naphthalenedisulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-01 | 2-Amino-1,5-naphthalenedisulfonic acid
117-62-4
|
20kg | 99% | 20 tons | Qingdao RENAS Polymer Material Co., Ltd. | ||
 |
2026-06-30 | 2-Amino-1,5-naphthalenedisulfonic acid
117-62-4
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-05-28 | 2-Amino-1, 5-Naphthalenedisulfonic Acid
117-62-4
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD |
-
- 2-Amino-1,5-naphthalenedisulfonic acid
117-62-4
- $0.00
- 99%
- Qingdao RENAS Polymer Material Co., Ltd.
-
- 2-Amino-1,5-naphthalenedisulfonic acid
117-62-4
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-
- 2-Amino-1, 5-Naphthalenedisulfonic Acid
117-62-4
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
117-62-4(2-Amino-1,5-naphthalenedisulfonic acid)Related Search:
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SULPHOTOBIAS ACID
2-amino-1,5-naphthalenedisulfonic
Sulfonic Tobias Acid
2-NAPHTHYLAMINE-1 5-DISULFONIC ACID SODI
2-NAPHTHYLAMINE-1,5-DISULFONIC ACID, F. PROT. SEQ. ANALYSIS
1,5-Naphthalenedisulfonic acid, 2-amino-
2-amino-5-naphthalenedisulfonicacid
5-sulfo-tobiasaci
kyselina2-naftylamin-1,5-disulfonova
kyselinasulfo-tobiasova
D SALT
2-NAPHTHYLAMINE-1,5-DISULFONIC ACID
2-AMINO-1,5-NAPHTHALENE DISULFONIC ACID
2-AMINONAPHTHALENE-1,5-DISULFONIC ACID
2-NaphthylaMine-1,5-DisulphonicAcid
2-AMINO-1,5-NAPHTHALENEDISULPHONICACID
2-Amino-1,5-naphthalenedisulfonic acid,tech.
2-Amino-1,5-naphthalenedisulfonicaci
Sulfo Tobias Acid(STA)
SULPHO TOBIAS ACID/ SULFO TOBIAS ACID(2-AMINONAPHTHALENE 1 5-DISULFONIC ACID)
Sulfonated trimeric acid
SULFO TOBIAS ACID
SULPHO TOBIAS ACID (ELECTRONIC GRADE)
117-62-4
C10H7NO6S2
Reagents for Protein Sequencing
Protein Sequencing
Protein Analysis
Proteomics and Protein Expression
BioChemical
Organic acids
Intermediates of Dyes and Pigments
