5-(Difluoromethyl)-3-methyl-1,2-oxazole CAS 1823402-96-5
| CAS No. | 1823402-96-5 |
| Molecular Formula | C5H5F2NO |
| Molecular Weight | 133.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Difluoromethyl)-3-methyl-1,2-oxazole (CAS 1823402-96-5), molecular formula C5H5F2NO and molecular weight 133.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(Difluoromethyl)-3-methyl-1,2-oxazole (C5H5F2NO) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 133.10 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 5-(Difluoromethyl)-3-methyl-1,2-oxazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H5F2NO |
| Molecular Weight | 133.10 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethyl Standards
- 5-(Difluoromethyl)-3-methyl-1h-1,2,4-triazole (CAS 1094760-03-8)
- 1-(Difluoromethyl)-1H-pyrazol-4-amine (CAS 1174309-16-0)
- 3-(Difluoromethyl)-1H-pyrazol-4-amine (CAS 1443288-79-6)
- 3-(difluoromethyl)-4-methyl-4H-1,2,4-triazole (CAS 1461706-95-5)
- 4-(Difluoromethyl)-2-oxa-3-azabicyclo[3.1.0]hex-3-ene (CAS 1627893-91-7)
- 1-(Difluoromethyl)-1H-imidazol-2-amine (CAS 2137617-28-6)
- 1-(difluoromethyl)-1H-pyrazol-3-amine (CAS 865663-99-6)
- 3-(Difluoromethyl)bicyclo[1.1.1]pentan-1-amine (CAS 1886967-47-0)
Recommended Standards
- 3,3-Difluoro-1-hydroxycyclobutane-1-carbonitrile (CAS 1808173-63-8)
- 1-Azido-1-(difluoromethyl)cyclopropane (CAS 1936730-27-6)
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- 1-(Piperidin-4-yl)imidazolidin-2-one (CAS 52210-86-3)
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- Selenophene-2,5-dicarbaldehyde (CAS 13706-04-2)
- DL-Valine-2,3-d2 (CAS 83181-79-7)
- 1,3-Dibromo-2-fluoro-4-methoxybenzene (CAS 1526600-49-6)
- 6-Benzyloxy-4-hydroxy-quinoline-3-carboxylic acid ethyl ester (CAS 35957-29-0)
- 6-(2,5-Dichlorophenoxy)hexanenitrile (CAS 1443355-17-6)
- 1-(2-Bromo-1-((1-methoxypropan-2-yl)oxy)ethyl)-3-fluorobenzene (CAS 1340075-89-9)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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