5,5-Difluoro-1-methyl-2-pyrrolidinone CAS 701216-95-7
| CAS No. | 701216-95-7 |
| Molecular Formula | C5H7F2NO |
| Molecular Weight | 135.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5,5-Difluoro-1-methyl-2-pyrrolidinone (CAS 701216-95-7) is a high-purity analytical reference standard with the molecular formula C5H7F2NO and a molecular weight of 135.11 g/mol.
Based on its molecular formula C5H7F2NO, 5,5-Difluoro-1-methyl-2-pyrrolidinone contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 135.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5,5-Difluoro-1-methyl-2-pyrrolidinone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H7F2NO |
| Molecular Weight | 135.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-(Difluoromethyl)pyrrolidin-2-one (CAS 70994-03-5)
- 3H-Imidazo[4,5-b]pyridin-6-ol (CAS 1023815-26-0)
- 3,3-difluorocyclobutane-1-carboxamide (CAS 86770-82-3)
- Pyrazolo[1,5-a]pyrimidin-5(1H)-one (CAS 1027534-43-5)
- 7-Formylquinolin-8-ylbenzoate (CAS 936497-79-9)
- 2-Bromo-3-(difluoromethyl)-6-fluoro-4-nitropyridine (CAS 1805370-98-2)
- Methyl 2-(4-methyl-1,4-diazepan-1-yl)pyrimidine-5-carboxylate (CAS 1035271-70-5)
- 3,4-Dichloro-2-methylpyridine (CAS 103949-58-2)
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