1H-Pyrazole-4-sulfonyl Chloride CAS 438630-64-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 438630-64-9 |
| Molecular Formula | C3H3ClN2O2S |
| Molecular Weight | 166.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1H-Pyrazole-4-sulfonyl Chloride (CAS 438630-64-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C3H3ClN2O2S. Molecular weight: 166.59 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C3H3ClN2O2S |
| Molecular Weight | 166.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- 1-Boc-pyrazole (CAS 219580-32-2)
- 1h-Pyrazole-4-sulfonohydrazide (CAS 1183491-92-0)
- 4-(1H-Pyrazole-4-yl)benzaldehyde (CAS 1017794-45-4)
- 1H-Pyrazole-5-carboxylicacid, 1-ethyl-3-methyl-, methyl ester 88398-73-6 CTK5F9772 (CAS 88398-73-6)
- 1H-Pyrazole-4-carboxamide, 5-chloro-N,1-dimethyl- (CAS 1020713-28-3)
- 1H-Pyrazole-1,5-dicarboxylic acid (CAS 90993-83-2)
- 1H-Pyrazole-3,4-dicarboxylic acid (CAS 31962-35-3)
- 1H-Pyrazole-3,5-dicarboxylic acid (CAS 3112-31-0)
Recommended Standards
- 1H-Imidazole-4-sulfonyl chloride (CAS 58767-51-4)
- Ethyl 4-Chloro-3-hydroxybutanoate (CAS 10488-69-4)
- 1H-imidazole-2-sulfonyl chloride (CAS 281221-70-3)
- 6-fluoro-7-nitro-3,4-dihydro-2H-isoquinolin-1-one (CAS 1809018-61-8)
- 2-Amino-5-(bromomethyl)-4-(difluoromethyl)nicotinaldehyde (CAS 1805235-74-8)
- Equilin-D4 (CAS 285979-79-5)
- 3-Bromo-2-hydroxy-5-(trifluoromethyl)pyridine (CAS 76041-73-1)
- 1-(4-Methyl-1H-pyrrol-3-yl)ethanone (CAS 18818-30-9)
- 3-Benzyl-9-hydroxy-3-azabicyclo[3.3.1]Nonane-1-carboxylic acid (CAS 1934759-85-9)
- Neuropeptide GE (CAS 134748-04-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com