2-chloro-1-pyrazol-1-yl-ethanone CAS 28998-74-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 28998-74-5 |
| Molecular Formula | C5H9ClN2O |
| Molecular Weight | 148.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-chloro-1-pyrazol-1-yl-ethanone (CAS 28998-74-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C5H9ClN2O. Molecular weight: 148.59 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C5H9ClN2O |
| Molecular Weight | 148.59 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
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- 6-chloro-3-methyl-pyrimidin-4-one (CAS 101079-62-3)
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Recommended Standards
- 2-chloro-1-(1-methoxycyclopropyl)ethanone (CAS 2573212-71-0)
- 2-chloro-3-ethoxycyclobutan-1-one (CAS 78119-91-2)
- 2-(oxolan-2-yl)acetyl chloride (CAS 2434-01-7)
- 4-Chloro-3,3-dimethylindoline (CAS 1235441-09-4)
- 1,2-Dihydroacenaphthylene-4,5-diamine (CAS 7473-20-3)
- 2,4-Dichloro-N-ethyl-N-(2-hydroxyethyl)benzamide (CAS 1011574-09-6)
- bis(6-methyl-1,2-dihydropyridin-2-one), sulfuric acid (CAS 1443981-41-6)
- 5-Bromo-2-(dimethylamino)benzamide (CAS 1369844-87-0)
- 3-((4,6-Diaminopyrimidin-2-yl)thio)propanoic acid (CAS 333409-96-4)
- Erythropoietin Mimetic Peptide Sequence 20 (CAS 203397-62-0)
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