Ethyl 3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-methyl-1,2-oxazole-4-carboxylate CAS 303997-38-8
| CAS No. | 303997-38-8 |
| Molecular Formula | C13H10ClF3N2O3 |
| Molecular Weight | 334.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-methyl-1,2-oxazole-4-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl 3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-methyl-1,2-oxazole-4-carboxylate (CAS 303997-38-8), a certified reference material (molecular formula C13H10ClF3N2O3, MW 334.68 g/mol) for analytical method development and quality control.
Structurally, Ethyl 3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-methyl-1,2-oxazole-4-carboxylate (C13H10ClF3N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 334.68 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures Ethyl 3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-methyl-1,2-oxazole-4-carboxylate 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 | C13H10ClF3N2O3 |
| Molecular Weight | 334.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
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