Methyl 3-(2,6-dichlorophenyl)-5-[(1Z)-1-(dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-1,2-oxazole-4-carboxylate CAS 338966-51-1
| CAS No. | 338966-51-1 |
| Molecular Formula | C17H13Cl2F3N2O4 |
| Molecular Weight | 437.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 3-(2,6-dichlorophenyl)-5-[(1Z)-1-(dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-1,2-oxazole-4-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Methyl 3-(2,6-dichlorophenyl)-5-[(1Z)-1-(dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-1,2-oxazole-4-carboxylate (CAS 338966-51-1), molecular formula C17H13Cl2F3N2O4 and molecular weight 437.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Methyl 3-(2,6-dichlorophenyl)-5-[(1Z)-1-(dimethylamino)-4,4,4-trifluoro-3-oxobut-1-en-2-yl]-1,2-oxazole-4-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H13Cl2F3N2O4 |
| Molecular Weight | 437.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 10.0 |
| 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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Recommended Standards
- Pibrentasvir Impurity 4 (CAS 1292836-20-4)
- 3,6-Dibromo-9-(2-ethylhexyl)-9H-carbazole (CAS 173063-52-0)
- Fipronil (CAS 120068-37-3)
- 1,8-Dibromo-3,6-di-tert-butyl-9H-carbazole (CAS 625385-37-7)
- MMPIP (CAS 479077-02-6)
- Alachlor Mercapturate (CAS 116482-92-9)
- (7E)-5-Benzyl-2-methyl-3-phenyl-7-(phenylmethylidene)-2H,3H,3aH,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine (CAS 477871-31-1)
- 6-Bromo-2,4-dichloro-5-methylaniline (CAS 2221812-02-6)
- 6-Chloro-8-methylimidazo[1,2-a]pyrazin-3-amine (CAS 1935287-70-9)
- Trandolapril EP Impurity D (CAS 149881-40-3)
- 6-Cyclobutoxypyridine-2,3-diamine (CAS 1531674-74-4)
- (E)-1-Bromo-4-chloro-3,3-dimethyl-6-phenylhex-5-en-2-one (CAS 88438-10-2)
- Ethyl 1-isopropyl-1,2,3-benzotriazole-5-carboxylate (CAS 1352217-61-8)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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