5-(Chloromethyl)-4-(trifluoromethyl)oxazole CAS 1279834-92-2
| CAS No. | 1279834-92-2 |
| Molecular Formula | C5H3ClF3NO |
| Molecular Weight | 185.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(Chloromethyl)-4-(trifluoromethyl)oxazole (CAS 1279834-92-2) is a high-purity analytical reference standard with the molecular formula C5H3ClF3NO and a molecular weight of 185.53 g/mol.
Owing to an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 5-(Chloromethyl)-4-(trifluoromethyl)oxazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 185.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C5H3ClF3NO |
| Molecular Weight | 185.53 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloromethyl Standards
- 4-(Chloromethyl)-2-(trifluoromethyl)oxazole (CAS 1240601-08-4)
- 5-(chloromethyl)-3-(trifluoromethyl)isoxazole (CAS 126572-12-1)
- 4-(Chloromethyl)-5-(trifluoromethyl)oxazole (CAS 1823901-92-3)
- 5-(chloromethyl)-3-(1H-1,2,4-triazol-3-yl)-1,2,4-oxadiazole (CAS 953751-07-0)
- 2-(Chloromethyl)-7-fluorobenzo[d]oxazole (CAS 122289-16-1)
- 2-(Chloromethyl)-4-fluorobenzo[d]oxazole (CAS 139549-22-7)
- 2-(Chloromethyl)-5-fluorobenzo[d]oxazole (CAS 143708-35-4)
- 2-(Chloromethyl)-6-fluoro-1,3-benzoxazole (CAS 143708-36-5)
Recommended Standards
- 3-Chloro-5-(2,2,2-trifluoroethyl)-4h-1,2,4-triazole (CAS 1340078-75-2)
- 5-chloro-1-methyl-3-(trifluoromethyl)-1H-1,2,4-triazole (CAS 114108-83-7)
- 3-Chloro-5-(trifluoromethyl)-1H-pyrazol-4-amine (CAS 2450343-55-0)
- 4-Chloro-2,3,5,6-tetrafluoropyridine (CAS 52026-98-9)
- 3-((3-Methylbenzyl)amino)propanoic acid (CAS 849616-03-1)
- 1-(Thiazol-4-yl)propan-1-one (CAS 129425-74-7)
- 2-(2-Cyano-4-methoxyphenyl)acetic acid (CAS 52786-67-1)
- 2,4'-Dichloro-5-methyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 2586126-36-3)
- 4-Chloro-5-methyl-2-phenylpyridazin-3(2H)-one (CAS 68143-10-2)
- 3-(3-Chloro-4-fluorophenyl)-1-propene (CAS 121626-73-1)
- 3,5-Bis(bromomethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2096469-95-1)
- Nickel(II) perchlorate hexahydrate (CAS 13520-61-1)
- 5-(3-(Trifluoromethoxy)phenyl)pyrimidin-2-ol (CAS 1111108-51-0)
- Biotinyl-S6 Phosphate Acceptor Peptide trifluoroacetate salt (CAS 1815618-12-2)
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