4,5-Difluoro-3-methyl-1,3-oxazolidin-2-one CAS 701231-96-1
| CAS No. | 701231-96-1 |
| Molecular Formula | C4H5F2NO2 |
| Molecular Weight | 137.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4,5-Difluoro-3-methyl-1,3-oxazolidin-2-one (C4H5F2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 137.08 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 4,5-Difluoro-3-methyl-1,3-oxazolidin-2-one (CAS 701231-96-1), a certified reference material (molecular formula C4H5F2NO2, MW 137.08 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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)
- 4,4-Difluoro-3-methyl-1,3-oxazolidin-2-one (CAS 701231-95-0)
- 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
- Diethyl Selenide (CAS 627-53-2)
- 1-Amino-2,2-difluorocyclopropanecarboxylic acid (CAS 734528-48-4)
- 2-Furancarboxylic acid, 3-cyano- (CAS 13177-74-7)
- (S)-4-(Difluoromethyl)-2-oxazolidinone (CAS 2059155-02-9)
- Ethyl 4-(4-Pyridyl)-2-thiazolecarboxylate (CAS 216867-38-8)
- 4-Hydroxy-5'-methoxyspiro[cyclohexane-1,2'-inden]-1'(3'H)-one (CAS 1956331-55-7)
- 3-Phenyl-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 1261845-94-6)
- 1-Phenyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-benzo[d]imidazole (CAS 1146340-38-6)
- 3-Hydroxy-4-(piperazin-1-yl)tetrahydrothiophene 1,1-dioxide (CAS 1049116-89-3)
- 3-Methoxy-4-(3-morpholin-4-yl-propoxy)-benzoic acid ethyl ester (CAS 108479-25-0)
- 1-Cyclohexyl-3,4-dihydroisoquinoline (CAS 65071-52-5)
- (R)-2-amino-N,3-dimethylbutanamide hydrochloride (CAS 202825-94-3)
- Cobamamide (CAS 13870-90-1)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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 18665070610 / Nicole.chen@cato-chem.com