1H-Pyrazole-4-carbonyl chloride CAS 103286-53-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 103286-53-9 |
| Molecular Formula | C4H3ClN2O |
| Molecular Weight | 130.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1H-Pyrazole-4-carbonyl chloride (CAS 103286-53-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H3ClN2O. Molecular weight: 130.53 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H3ClN2O |
| Molecular Weight | 130.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related H Standards
- 1H-Pyrazole-3-carbonyl chloride (CAS 717871-84-6)
- Pyrazole-1-carbonyl Chloride (CAS 53355-55-8)
- (1H-Pyrazole-3,5-diyl)dimethanol (CAS 142179-08-6)
- 1h-Pyrazole-4-carbothioamide (CAS 1017781-31-5)
- 1H-Pyrazole-5-carbothioamide (CAS 1314902-85-6)
- 1H-Pyrazole-1-carbothioamide (CAS 1794-34-9)
- 1H-Pyrazole-4-carbohydrazide (CAS 87551-45-9)
- 1H-Pyrazole-5-carbohydrazide (CAS 26275-64-9)
Recommended Standards
- 3-Chlorofuran-2-carbaldehyde (CAS 101724-23-6)
- 5-Chloro-1H-imidazole-2-carbaldehyde (CAS 1219944-80-5)
- 2-(Chloromethoxy)-1,1-difluoroethane (CAS 1558385-27-5)
- 5-Hydroxy-2-naphthoic acid (CAS 2437-18-5)
- 5,6-Dichloro-1-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 1332624-58-4)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(2-fluorophenyl)-2-(morpholin-4-yl)acetonitrile (CAS 339097-07-3)
- 4-Methoxy-2-methylbenzene-1-sulfonamide (CAS 59554-42-6)
- 1-(4-(Tert-butyl)benzyl)-5,6-dichloro-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 338774-32-6)
- 2-[2-(4-Fluorophenyl)-1,3-thiazol-4-yl]ethan-1-amine dihydrochloride (CAS 1423029-27-9)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
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