1-[(E)-2-Phenylethenyl]-4-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]quinoxaline CAS 338968-42-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 338968-42-6 |
| Molecular Formula | C18H11F3N4 |
| Molecular Weight | 340.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-[(E)-2-Phenylethenyl]-4-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]quinoxaline (CAS 338968-42-6) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H11F3N4. Molecular weight: 340.30 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H11F3N4 |
| Molecular Weight | 340.30 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related E Standards
- 7-[(Z)-2-Phenylethenyl]-2-{[(2E)-3-phenylprop-2-en-1-yl]sulfanyl}-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1164492-92-5)
- 2-[(1E)-2-Phenylethenyl]-3-(phenylmethoxy)-4H-pyran-4-one (CAS 1206102-05-7)
- 1-(Trans-2-Phenylethenyl)-4-(phenylethynyl)benzene (CAS 173035-17-1)
- 9-[(E)-2-Phenylethenyl]-2,4-bis(trifluoromethyl)-[1,2,4]triazolo[4,3-a]1,8-naphthyridine (CAS 338962-23-5)
- 2-({4-[(E)-2-phenylethenyl]pyrimidin-2-yl}sulfanyl)acetonitrile (CAS 338407-73-1)
- 1-(2-phenylethenyl)-4-(trifluoromethyl)benzene (CAS 124562-04-5)
- [(2-Phenylethenyl)sulfonyl]benzene (CAS 5418-11-1)
- ethyl 2-(2-phenylethenyl)-1,3-oxazole-4-carboxylate (CAS 107367-69-1)
Recommended Standards
- (3S,4R,5R)-5-((Benzoyloxy)methyl)-4-fluorotetrahydrofuran-2,3-diyl diacetate (CAS 2316640-49-8)
- 1-Phenyl-3-(pyridin-3-yl)-6-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine (CAS 306977-36-6)
- (3E)-1,1,1-trifluoro-5-[(2Z)-1,3,3-trimethyl-6-nitro-2,3-dihydro-1H-indol-2-ylidene]pent-3-en-2-one (CAS 379239-99-3)
- 1-(4-(6-(4-Ethoxyphenyl)pyridazin-3-yl)piperazin-1-yl)-2,2,2-trifluoroethan-1-one (CAS 1040639-74-4)
- N-(3,4-Dimethoxyphenyl)formamide (CAS 33904-02-8)
- Levofloxacin Impurity 32 (CAS 1329833-82-0)
- N-Desthiobiotin-N-bis(PEG4-NHS ester) (CAS 2353409-61-5)
- 3-Amino-7-ethyl-1,3-dihydro-2H-indol-2-onehydrochloride (CAS 1332528-28-5)
- Ethyl 4-amino-2-thioxo-2,5-dihydropyrimidine-5-carboxylate (CAS 312748-25-7)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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