(5-Phenylisoxazol-3-yl)methyl 3-(trifluoromethyl)benzoate CAS 343374-56-1
| CAS No. | 343374-56-1 |
| Molecular Formula | C18H12F3NO3 |
| Molecular Weight | 347.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 347.29 g/mol gives (5-Phenylisoxazol-3-yl)methyl 3-(trifluoromethyl)benzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(5-Phenylisoxazol-3-yl)methyl 3-(trifluoromethyl)benzoate (CAS 343374-56-1) is a high-purity analytical reference standard with the molecular formula C18H12F3NO3 and a molecular weight of 347.29 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, (5-Phenylisoxazol-3-yl)methyl 3-(trifluoromethyl)benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 347.29 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (5-Phenylisoxazol-3-yl)methyl 3-(trifluoromethyl)benzoate 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.
Physical & Chemical Properties
| Molecular Formula | C18H12F3NO3 |
| Molecular Weight | 347.29 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Phenylisoxazol Standards
- (5-Phenylisoxazol-3-yl)methyl 3,4-dichlorobenzoate (CAS 343374-57-2)
- (5-Phenylisoxazol-3-yl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone (CAS 1448046-54-5)
- (5-Phenylisoxazol-3-yl)(4-(thiophen-3-yl)piperidin-1-yl)methanone (CAS 1396799-01-1)
- Methyl 2-(((5-phenylisoxazol-3-yl)methyl)carbamoyl)benzoate (CAS 953178-74-0)
- N-((5-Phenylisoxazol-3-yl)methyl)benzo[d]thiazole-2-carboxamide (CAS 1206998-03-9)
- 3-Phenylisoxazol-5-yl 3-(trifluoromethyl)benzoate (CAS 303987-02-2)
- 1070176-30-5 4-[4-(5-Methyl-3-phenylisoxazol-4-yl)-1,3-thiazol-2-yl]piperidine (CAS 1070176-30-5)
- 3-Phenylisoxazol-5-yl 2,4-dichlorobenzenesulfonate (CAS 320423-37-8)
Recommended Standards
- (1-Phenyl-1H-1,2,3-triazol-4-yl)methyl 3-(trifluoromethyl)benzoate (CAS 338757-36-1)
- 2-((Benzo[b]selenophen-2-ylthio)methyl)benzoic acid (CAS 62688-17-9)
- 2-(Dimethylamino)-9H-fluoren-9-one (CAS 18158-43-5)
- 2-Benzyl-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylic acid (CAS 64322-02-7)
- 4-Chloro-2-methyl-5-nitrobenzaldehyde (CAS 1805673-29-3)
- (4-Bromo-1-ethyl-3-methyl-1H-pyrazol-5-yl)methanol (CAS 1492607-29-0)
- Sodium 1-hydroxy-2,5-dioxopyrrolidine-3-sulfonate hydrate (CAS 304671-62-3)
- (5Z,8Z,11Z,14Z-eicosatetraenoyl) Coenzyme A (ammonium salt) 20:4 Coenzyme A 799812-93-4 (CAS 799812-93-4)
- DTCO7-2Br (CAS 1327334-59-7)
- 2-(1,3-Dioxoisoindolin-2-yl)-N-(4-methoxyphenyl)propanamide (CAS 140244-42-4)
- [2-(difluoromethoxy)naphthalen-1-yl]methanol (CAS 834885-12-0)
- 2-(Aminomethyl)-5-cyclopropoxypyridin-3-amine (CAS 1243316-08-6)
- (R)-Piperidin-3-ylmethanamine dihydrochloride (CAS 2059913-68-5)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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 18665070610 / Nicole.chen@cato-chem.com