2-((3-Ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide CAS 1040662-34-7
| CAS No. | 1040662-34-7 |
| Molecular Formula | C23H18F3N3O2S2 |
| Molecular Weight | 489.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2-((3-Ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 1040662-34-7) is a high-purity analytical reference standard with the molecular formula C23H18F3N3O2S2 and a molecular weight of 489.53 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, 2-((3-Ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 489.53 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).
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 | C23H18F3N3O2S2 |
| Molecular Weight | 489.53 g/mol |
| 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.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Recommended Standards
- Orforglipron impurity 66 (CAS CATO-C4X-323466)
- N-(2-Methoxyethyl)-2-((5-(4-(4-(trifluoromethyl)benzoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 1105201-20-4)
- Orforglipron impurity 20 (CAS CATO-C4X-323420)
- BAY-1436032, >98% (HPLC) (CAS 1803274-65-8)
- tert-Butyl 1,2,3,4-tetrahydroisoquinoline-3-carboxylate (CAS 82716-91-4)
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