4,4-Difluoro-3-methyl-1,3-oxazolidin-2-one CAS 701231-95-0
| CAS No. | 701231-95-0 |
| Molecular Formula | C4H5F2NO2 |
| Molecular Weight | 137.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4-Difluoro-3-methyl-1,3-oxazolidin-2-one 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.
4,4-Difluoro-3-methyl-1,3-oxazolidin-2-one (CAS 701231-95-0), molecular formula C4H5F2NO2 and molecular weight 137.08 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 4,4-Difluoro-3-methyl-1,3-oxazolidin-2-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 137.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C4H5F2NO2 |
| Molecular Weight | 137.08 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 3,3-Difluoro-4-hydroxypyrrolidin-2-one (CAS 1914929-27-3)
- 4,5-Difluoro-3-methyl-1,3-oxazolidin-2-one (CAS 701231-96-1)
- 6,6-difluoro-1,4-oxazepane (CAS 1273565-78-8)
- 3,3-Difluoro-4-methoxy-pyrrolidine (CAS 1638920-22-5)
- 4,4-Difluoro-1-methylpyrrolidin-3-ol (CAS 1781347-63-4)
- 2,2-difluoro-2-(oxetan-3-yl)ethan-1-amine (CAS 1783697-93-7)
- 3,3-Difluoro-1-(2-hydroxyethyl)cyclobutane (CAS 1056467-54-9)
- (2,2-Difluoro-3,3-dimethylcyclopropyl)methanol (CAS 131262-12-9)
Recommended Standards
- 1-Amino-2,2-difluorocyclopropanecarboxylic acid (CAS 734528-48-4)
- (S)-4-(Difluoromethyl)-2-oxazolidinone (CAS 2059155-02-9)
- Diethyl Selenide (CAS 627-53-2)
- (R)-1-Amino-2,2-difluorocyclopropanecarboxylic acid (CAS 792173-09-2)
- 2-(3-Chlorophenyl)-1H-benzo[d]imidazole (CAS 22868-35-5)
- (5R,7R)-7-fluoro-5-isopropyl-2-(perfluorophenyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate (CAS 1311991-39-5)
- Methyl 3-amino-4-methylpicolinate (CAS 1263059-97-7)
- Difelikefalin Impurity 17 Trifluoroacetic acid (CAS CATO-C4X-304117)
- (r)-7-Fluoro-2-(piperidin-3-yl)isoindolin-1-one hydrochloride (CAS 1786991-39-6)
- 2-Methoxy-6-(4-methylpiperazin-1-yl)pyridin-3-amine (CAS 1094787-95-7)
- 1,2,7,8-Tetrachlorodibenzo-p-dioxin (CAS 34816-53-0)
- Ethyl 7-amino-2-methyl-3-(3-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 886762-57-8)
- Cyclopentyl 3-thienyl ketone (CAS 898771-72-7)
- Lixisenatide (CAS 320367-13-3)
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