1-(3-Chlorophenyl)-4-(5-(4-methoxyphenethyl)-1,2,4-oxadiazol-3-yl)pyrrolidin-2-one CAS 1170059-82-1
| CAS No. | 1170059-82-1 |
| Molecular Formula | C21H20ClN3O3 |
| Molecular Weight | 397.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Chlorophenyl)-4-(5-(4-methoxyphenethyl)-1,2,4-oxadiazol-3-yl)pyrrolidin-2-one (CAS 1170059-82-1) is a high-purity analytical reference standard with the molecular formula C21H20ClN3O3 and a molecular weight of 397.85 g/mol.
1-(3-Chlorophenyl)-4-(5-(4-methoxyphenethyl)-1,2,4-oxadiazol-3-yl)pyrrolidin-2-one (C21H20ClN3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H20ClN3O3 |
| Molecular Weight | 397.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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