1-(3,5-Difluoro-1H-pyrazol-1-yl)ethanone CAS 73311-18-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 73311-18-9 |
| Molecular Formula | C5H4F2N2O |
| Molecular Weight | 146.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(3,5-Difluoro-1H-pyrazol-1-yl)ethanone (CAS 73311-18-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H4F2N2O. Molecular weight: 146.09 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H4F2N2O |
| Molecular Weight | 146.09 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.) | 1977 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Difluoro Standards
- 2,5-Difluoro-4-methoxypyrimidine (CAS 123038-80-2)
- 2,3-Difluoro-1,4-benzenediol (CAS 124728-90-1)
- 1-(3,4-Difluoro-1H-pyrazol-1-yl)ethanone (CAS 73305-85-8)
- 1,3-Difluoro-4,6-dihydroxybenzene (CAS 205758-43-6)
- 2,2-Difluoro-1-(1H-imidazol-2-yl)ethan-1-one (CAS 2092222-01-8)
- 2,4-Difluoro-6-methoxypyrimidine (CAS 27078-76-8)
- 3,4-Difluoro-6-methyl-2H-pyran-2-one (CAS 75599-88-1)
- 4,6-Difluoro-2-Methoxypyrimidine (CAS 27078-75-7)
Recommended Standards
- 1-(Difluoromethyl)-1H-imidazole-5-carbaldehyde (CAS 2831287-52-4)
- 2,4-Difluorobenzene-1,3-diol, 97% (CAS 195136-71-1)
- 1-(Difluoromethyl)-1H-pyrazole-5-carbaldehyde (CAS 1823256-07-0)
- Oxazol-5-amine hydrochloride (CAS 1956310-42-1)
- Ethyl 4-amino-2-chloro-6-methylpyrimidine-5-carboxylate (CAS 43106-78-1)
- 4-Methoxythiophene-2-carboxylic Acid (CAS 77133-27-8)
- Methyl 2-amino-4-isobutylpyrimidine-5-carboxylate (CAS 1133115-97-5)
- 5,5,5-Trifluoropentan-2-ol (CAS 352-58-9)
- Ethyl (Z)-dodec-3-enoate (CAS 79837-93-7)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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