2-(Difluoromethyl)oxazole-4-carbaldehyde CAS 1783425-24-0
| CAS No. | 1783425-24-0 |
| Molecular Formula | C5H3F2NO2 |
| Molecular Weight | 147.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Difluoromethyl)oxazole-4-carbaldehyde (C5H3F2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-(Difluoromethyl)oxazole-4-carbaldehyde (CAS 1783425-24-0), molecular formula C5H3F2NO2 and molecular weight 147.08 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C5H3F2NO2 |
| Molecular Weight | 147.08 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethyl Standards
- 3-(Difluoromethyl)isoxazole-5-carbaldehyde (CAS 2344685-03-4)
- 3-(difluoromethyl)triazole-4-carbaldehyde (CAS 2845318-70-7)
- 4-(Difluoromethyl)-3-fluoropyridine (CAS 1374659-35-4)
- 3-(Difluoromethyl)-5-fluoropyridine (CAS 1374659-37-6)
- 5-(Difluoromethyl)-2-fluoropyridine (CAS 1374659-41-2)
- 3-(Difluoromethyl)-2-fluoropyridine (CAS 1374659-42-3)
- 2-(Difluoromethyl)-5-fluoropyridine (CAS 1783752-56-6)
- 2-(Difluoromethyl)-3-fluoropyridine (CAS 1784569-86-3)
Recommended Standards
- 2-amino-2,5-dihydro-1,5,2-diazaphosphinin-6(1H)-one 2-oxide (CAS 69907-44-4)
- 1-Cyano-2,2-difluorocyclopropanecarboxylic acid (CAS 51504-06-4)
- 1,2,4-Triazine-3-carboxylic acid sodium salt (CAS 1980038-44-5)
- 2,2-Difluoro-1-(1H-1,2,4-triazol-1-yl)ethanone (CAS 69018-44-6)
- 4-Bromo-N-cyclopropylpyridin-2-amine (CAS 1209458-84-3)
- 3-(Azocan-1-yl)propanoic acid (CAS 915922-57-5)
- Fenthion-sulfoxide D6 (O,O-dimethyl D6) (CAS CATO-CCPD101974)
- 1-(3-(4-Bromophenyl)-1,2,4-oxadiazol-5-yl)propan-2-one (CAS 1204296-19-4)
- 2-((4-Chlorophenyl)amino)thiazole-4-carboxylic acid (CAS 165682-82-6)
- Atorvastatin Impurity 96 (CAS CATO-C4X-113296)
- N-(6-(1H-Indol-4-yl)naphthalen-2-yl)thiophene-3-carboxamide (CAS 919362-67-7)
- 1-(4-HYdroxybenzoyl)piperidine-4-carboxylic acid (CAS 1016504-50-9)
- (1,5-Naphthyridin-3-yl)methanol (CAS 1261365-54-1)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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