Methyl 3-(2-chloro-6-fluorophenyl)-5-(1-(2-fluorophenyl)-3-(trifluoromethyl)-1H-pyrazol-4-yl)isoxazole-4-carboxylate CAS 318949-20-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 318949-20-1 |
| Molecular Formula | C21H11ClF5N3O3 |
| Molecular Weight | 483.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(2-chloro-6-fluorophenyl)-5-(1-(2-fluorophenyl)-3-(trifluoromethyl)-1H-pyrazol-4-yl)isoxazole-4-carboxylate (CAS 318949-20-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H11ClF5N3O3. Molecular weight: 483.78 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H11ClF5N3O3 |
| Molecular Weight | 483.78 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- Methyl 3-(2-chloro-6-fluorophenyl)-5-(1-(4-fluorophenyl)-3-(trifluoromethyl)-1H-pyrazol-4-yl)isoxazole-4-carboxylate (CAS 318949-21-2)
- 2-((2-Chloro-6-fluorobenzyl)thio)-7-(1-(2,4-dichlorophenoxy)ethyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 338751-48-7)
- 4-[[2-Chloro-5-(Trifluoromethyl)Phenyl]Hydrazinylidene]-N-(2-Methylphenyl)-3-Oxo-Naphthalene-2-Carboxamide (CAS 17618-85-8)
- (4Z)-4-[[4-Chloro-3-(Trifluoromethyl)Phenyl]Hydrazinylidene]-N-(4-Methylphenyl)-3-Oxonaphthalene-2-Carboxamide (CAS 72319-13-2)
- 2-[(3E)-3-[(2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2-oxoethoxy)imino]-1-(dimethylamino)propylidene]propanedinitrile (CAS 339102-94-2)
- 3-(4-Chloro-3-methylphenoxy)-8-((dipropylamino)methyl)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one (CAS 685861-44-3)
- (E)-6-chloro-4-(methylsulfonyl)-N'-(3,4,5-trimethoxybenzylidene)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide (CAS 866134-93-2)
- 2-(6-Chloro-5-(4-(4-fluorobenzyl)piperidine-1-carbonyl)-1-methyl-1H-indol-3-yl)-N,N-dimethyl-2-oxoacetamide (CAS 309913-42-6)
Recommended Standards
- 3,4,6,7-Tetrabromodibenzo[b,d]furan (CAS 617707-92-3)
- 2,4,6,8-Tetrabromodibenzo[b,d]furan (CAS 617707-91-2)
- 3,4,5-Triiodobenzaldehyde (CAS 1083181-39-8)
- 6-Benzyl 5-(tert-butyl) (S)-5-azaspiro[2.4]heptane-5,6-dicarboxylate (CAS 1175893-54-5)
- N-(p-Tolyl)morpholine-3-carboxamide (CAS 1479757-96-4)
- N-(+)-Biotinyl-3-aminopropylammonium trifluoroacetate (CAS 244760-26-7)
- 1,35-Dibromo-3,6,9,12,15,18,21,24,27,30,33-undecaoxapentatriacontane (CAS 1352123-92-2)
- 2-Methyl-4-(p-tolyl)butan-1-ol (CAS 1339726-75-8)
- 5,8-Dihydro-5,8-epoxynaphtho[2,3-d]-1,3-dioxole (CAS 94670-77-6)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com