1-[4-phenyl-5-(trifluoromethyl)-2-thienyl]ethan-1-one O1-ethyloxime CAS 256370-34-0
| CAS No. | 256370-34-0 |
| Molecular Formula | C15H14F3NOS |
| Molecular Weight | 313.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, 1-[4-phenyl-5-(trifluoromethyl)-2-thienyl]ethan-1-one O1-ethyloxime is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 313.34 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).
1-[4-phenyl-5-(trifluoromethyl)-2-thienyl]ethan-1-one O1-ethyloxime (CAS 256370-34-0) is a high-purity analytical reference standard with the molecular formula C15H14F3NOS and a molecular weight of 313.34 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H14F3NOS |
| Molecular Weight | 313.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related phenyl Standards
- 4-Methyl-5-(2-(1-(trifluoromethyl)cyclobutyl)-pyridin-4-yl)thiazol-2-amine (CAS 1395492-66-6)
- 8-Benzyl-10-(trifluoromethyl)-8-azabicyclo[4.3.1]decan-10-ol (CAS 1251923-81-5)
- N-(4-(3-(Trifluoromethyl)phenoxy)but-2-yn-1-yl)pivalamide (CAS 1428364-71-9)
- 1-Phenyl-3-(trifluoromethyl)-1H-pyrazolo[3,4-b]quinoline (CAS 1193403-12-1)
- 5-Propyl-1-(3-(trifluoromethyl)benzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338674-13-7)
- Benzyl (2-(4-(trifluoromethyl)-1H-imidazol-1-yl)ethyl)carbamate (CAS 1956382-51-6)
- 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl (2,6-dimethylphenyl)carbamate (CAS 477713-73-8)
- 4-((3-(3-(Trifluoromethyl)phenyl)-1,2,4-oxadiazol-5-yl)methyl)morpholine (CAS 860784-33-4)
Recommended Standards
- Tert-butyl 4-(4-amino-2,6-difluorophenyl)piperazine-1-carboxylate (CAS 170104-82-2)
- N,N-Dimethyl-4-[(4-methylphenyl)sulfanyl]-6-(trifluoromethyl)pyrimidin-2-amine (CAS 338792-53-3)
- tert-Butyl 4-(2,3-difluorophenyl)-4-hydroxypiperidine-1-carboxylate (CAS 1628430-28-3)
- N-[(5Z)-4-Oxo-5-{[2-(1H-1,2,4-triazol-1-yl)phenyl]methylidene}-4,5-dihydro-1,3-thiazol-2-yl]guanidine (CAS 861209-97-4)
- Ethyl 6-oxo-6-(3-thienyl)hexanoate (CAS 333355-34-3)
- 6-Bromo-4H-cyclopenta[d]pyrimidin-4-one (CAS 1375069-40-1)
- 7-Azaspiro[3.5]nonan-6-one (CAS 2344685-49-8)
- Pranoprofen Impurity 37 (CAS CATO-C4X-181137)
- Tert-butyl [2,3'-bipiperidine]-1'-carboxylate (CAS 1250996-04-3)
- 2-(Methylamino)pyridine-4-boronic acid pinacol ester (CAS 1350913-08-4)
- 3-(chloromethyl)-2,5-dimethylpyrazine (CAS 921040-00-8)
- Canrenone-d6 (Major) (CAS CATO-CCAD301170)
- 3-Cyclopropyl-1-ethyl-1H-pyrazole-5-carboxylic acid (CAS 1170123-76-8)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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