4-Chloro-2h-pyran-2-one CAS 129660-02-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 129660-02-2 |
| Molecular Formula | C5H3ClO2 |
| Molecular Weight | 130.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-2h-pyran-2-one (CAS 129660-02-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H3ClO2. Molecular weight: 130.53 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H3ClO2 |
| Molecular Weight | 130.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 5-Chloro-1H-imidazole-2-carbaldehyde (CAS 1219944-80-5)
- 5-Chloro-1H-pyrazole-3-carbaldehyde (CAS 1367702-84-8)
- 2-Chloro-1H-imidazole-5-carbaldehyde (CAS 944900-99-6)
- 4-Chloro-1H-pyrazole-3-carbaldehyde (CAS 623570-54-7)
- 4-Chloro-6-hydroxypyrimidine (CAS 4765-77-9)
- 5-Chloro-2-furaldehyde (CAS 21508-19-0)
- 6-Chloro-2H-pyran-2-one (CAS 20357-65-7)
- 2-Chloro-5-hydroxypyrimidine (CAS 4983-28-2)
Recommended Standards
- 4-Chloropyrimidin-5-ol (CAS 1261536-41-7)
- 3-Chloropyridazin-4-ol (CAS 1379240-74-0)
- 1H-Pyrazole-4-carbonyl chloride (CAS 103286-53-9)
- Fibronectin Fragment (1377-1388) (H-2572.0001) (CAS 162257-99-0)
- 2-Amino-5-benzyl-5-(4-chlorophenyl)-4,5-dihydro-1H-imidazol-4-one (CAS 918665-13-1)
- Miglitol Impurity 2 (CAS CATO-C4X-16972)
- 3-(2-Chloro-6-methylphenyl)-2-phenylpyrimidin-4(3H)-one (CAS 89069-70-5)
- 4-Hydroxy-1-[2-(trifluoromethyl)phenyl]-1h-pyrazole-3-carbohydrazide (CAS 957014-21-0)
- 2-Bromo-1-methyl-2,3-dihydro-1H-imidazole (CAS 16681-59-8)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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