Methyl 2-(2,2-difluoroethyl)-5-imino-2,5-dihydro-1h-pyrazole-3-carboxylate CAS 1328640-36-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1328640-36-3 |
| Molecular Formula | C7H9F2N3O2 |
| Molecular Weight | 205.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2-(2,2-difluoroethyl)-5-imino-2,5-dihydro-1h-pyrazole-3-carboxylate (CAS 1328640-36-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H9F2N3O2. Molecular weight: 205.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H9F2N3O2 |
| Molecular Weight | 205.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 1-(2,2-Difluoroethyl)-3,5-dimethyl-4-nitro-1h-pyrazole (CAS 1006443-08-8)
- Ethyl 5-(1,1-difluoroethyl)isoxazole-3-carboxylate (CAS 861136-14-3)
- 1-(1,1-Difluoroethyl)-3-fluoro-5-nitrobenzene (CAS 1529770-08-8)
- 2-(1,1-Difluoroethyl)-1-fluoro-4-nitrobenzene (CAS 445303-19-5)
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- 1-(2,2-Difluoroethyl)-5-(propoxymethyl)-1H-pyrazole (CAS 1856044-84-2)
- 2-(2,2-Difluoroethyl)-2h,3h,5h,6h,7h,8h-[1,2,4]triazolo[4,3-a]piperazin-3-one (CAS 1498956-59-4)
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Recommended Standards
- 5-Fluoro-1-(3-fluorophenyl)-1H-pyrazole-4-carbonitrile (CAS 1269292-60-5)
- 1-Trifluoromethanesulfonylazetidin-3-ol (CAS 1339116-75-4)
- 5-Trifluoromethylsulfanyl-pyrazine-2-carbonitrile (CAS 1246466-36-3)
- 2-Amino-2-(3,3-difluorocyclobutyl)acetonitrile hydrochloride (CAS 1215071-18-3)
- 6-(((4-Chlorophenyl)thio)methyl)-2-(pyridin-2-yl)pyrimidin-4(3H)-one (CAS 337923-15-6)
- N-morpholino-4-(trifluoromethoxy)benzenesulfonamide (CAS 866151-75-9)
- 4-[(1H-Pyrazol-1-yl)methyl]benzaldehyde (CAS 887922-90-9)
- 6-Chlorocinnolin-3(2H)-one (CAS 101495-52-7)
- 2-Cyclohexylthiazole-5-carboxylic acid (CAS 933732-03-7)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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