ChemicalBook >> CAS DataBase List >>3-Pyridinesulfonic acid
3-Pyridinesulfonic acid
- CAS No.
- 636-73-7
- Chemical Name:
- 3-Pyridinesulfonic acid
- Synonyms
- PYRIDINE-3-SULFONIC ACID;P3SA;Vonoprazan-9;3-PyridinesuL;Vonoprazan-064;3-sulfopyridine;beta-sulfopyridine;TAK438 Impurity 50;3-Pyridinesulfonic;Pyridinesulfonic aci
- CBNumber:
- CB3772948
- Molecular Formula:
- C5H5NO3S
- Molecular Weight:
- 159.16
- MDL Number:
- MFCD00006381
- MOL File:
- 636-73-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 01:55:52
| Melting point | >300 °C (lit.) |
|---|---|
| Density | 1.7130 |
| refractive index | 1.5480 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Crystalline Powder |
| pka | -2.30±0.18(Predicted) |
| color | White to almost white |
| Water Solubility | soluble |
| Sensitive | Light Sensitive |
| λmax | 262nm(EtOH aq.)(lit.) |
| BRN | 120822 |
| InChI | InChI=1S/C5H5NO3S/c7-10(8,9)5-2-1-3-6-4-5/h1-4H,(H,7,8,9) |
| InChIKey | DVECLMOWYVDJRM-UHFFFAOYSA-N |
| SMILES | C1=NC=CC=C1S(O)(=O)=O |
| CAS DataBase Reference | 636-73-7(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P260-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34-22 | |||||||||
| Safety Statements | 26-36/37/39-45-27 | |||||||||
| RIDADR | UN 2585 8/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UT7920000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29333999 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Skin Corr. 1B | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
3-Pyridinesulfonic acid price More Price(60)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 82820 | 3-Pyridinesulfonic acid ≥98.0% (T) | 636-73-7 | 25g | $32 | 2026-04-30 | Buy |
| Sigma-Aldrich | 82820 | 3-Pyridinesulfonic acid ≥98.0% (T) | 636-73-7 | 100g | $122 | 2026-04-30 | Buy |
| TCI Chemical | P0658 | Pyridine-3-sulfonic Acid >98.0%(T) | 636-73-7 | 25g | $39 | 2026-04-30 | Buy |
| Usbiological | 426639 | 3-Pyridylsulfonic Acid | 636-73-7 | 1g | $312 | 2026-06-03 | Buy |
| Usbiological | 426639 | 3-Pyridylsulfonic Acid | 636-73-7 | 5g | $396 | 2026-06-03 | Buy |
3-Pyridinesulfonic acid Chemical Properties, Uses, Production
Chemical Properties
white to almost white crystalline powder
Uses
3-Pyridinesulfonic acid can be used in the synthesis of reaction intermediates, such as silver 3-pyridinesulfonate and 3-pyridinesulfonyl chloride.
Purification Methods
Purify the acid by recrystallisation from H2O or aqueous EtOH as needles or plates. [pKa: Evans & Brown J Org Chem 27 3127 1962, IR: Arnett & Chawla J Am Chem Soc 100 214 1978.] UV in 50% aqueous EtOH has at 208 and 262nm. The ammonium salt max has m 243o (from H2O), the sulfonyl chloride has m 133-134o (from pet ether), the amide has m 110-111o (from H2O), the hydrochloride has m >300o(dec), and the N-methyl betaine has m 130o (from H2O). [Gastel & Wibaut Recl Trav Chim Pays-Bas 53 1031 1934, McIlvain & Goese J Am Chem Soc 65 2233 1943, Machek Monatsh Chem 72 77 1938, Beilstein 22 I 616, 22 II 309, 22/7 V 552.]
3-Pyridinesulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 488)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Taijilin Industrial Co., Ltd. | 02150630626 17717886015 | kate@tajilin.com | China | 1341 | 58 |
| Suzhou Runsen Pharmaceutical Technology Co., Ltd. | 0512-65885589 18751140360 | sales@rosen-chemicals.com | China | 275 | 58 |
| Shanghai TongYuan Chemical Co., Ltd. | 021-021-69182866 13701855675 | tongyuanchem@126.com | China | 4184 | 58 |
| Tai 'an Huanyu Chemical Co., LTD | 13176825516; 13176825516 | 78995114@qq.com | China | 79 | 58 |
| Nanjing ShenNiao Chemical Technology Co.,LTD | 025-86667050 17861123238 | majiaming@snscm.com | China | 247 | 58 |
| Giant chemicals | 请加QQ询价！ | 2720161014@qq.com | China | 715 | 56 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TAIYUAN RHF CO.,LTD. | +86 351 7031519 | sales@RHFChem.com | China | 2334 | 56 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
View Latest Price from 3-Pyridinesulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-17 | 3-Pyridinesulfonic acid
636-73-7
|
1KG | 98%min | 1000kgs | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-02 | 3-Pyridinesulfonic acid
636-73-7
|
$1.00-8.00 | 1kg | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-08-08 | Pyridine-3-sulfonic acid
636-73-7
|
1kg | 99.0% | 20 tons | Hangzhou ICH Biofarm Co., Ltd |
-
- 3-Pyridinesulfonic acid
636-73-7
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 3-Pyridinesulfonic acid
636-73-7
- $1.00-8.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Pyridine-3-sulfonic acid
636-73-7
- 99.0%
- Hangzhou ICH Biofarm Co., Ltd
636-73-7 (3-Pyridinesulfonic acid) Related Search:
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Pyridinesulfonic aci
3-Pyridinesulfonic acid >=98.0% (T)
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Vonoprazan Fumarate impurity O
Vonoprazan Impurity 30
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3-PYRIDINESULPHONIC ACID
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-Pyridinesulfonic acid
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3-Pyridinesulfonic acid ,98%
Phridine-3-sulfonic acid
Vonoprazan-9
Pyridine-3-sulfonicAcid>
Voronozan impurity N
3-PyridinesuL
3-Pyridinesulfonic acid ISO 9001：2015 REACH
Pyridine-3-sulfonic acid (Vonoprazan Impurity)
Vonoprazan-064
Pyridine-3-Sulphonic Acid (P3SA) extrapure, 98%
1,2-bis(5-(2-fluorophenyl)-1H-pyrrol-3-yl)-2-hydroxyethan-1-one
3-Pyridinesulfonic acid (6CI, 7CI, 8CI, 9CI, ACI)
Vonolazan impurity 56
Vonolazan impurity 9
Rosiglitazone sodium salt
P3SA
3-Pyridinesulfonicaci
Pyridin-3-sulfonic acid
PYRIDINE-3-SULFONIC ACID
636-73-7
666-73-7
626-73-7
636-73-3
637-73-7
623-73-7
C5H4NO3S
C5H4NSO3H
C5H5NO3S
Building Blocks
C5
Heterocyclic Building Blocks
Pyridines
Pyridines, Pyrimidines, Purines and Pteredines
Pyridine
Organic acids
Heterocycle-Pyridine series
bc0001
636-73-7
