2-Benzamido-N-butyl-4-(4,5-dihydrooxazol-2-yl)benzamide CAS 919790-23-1
| CAS No. | 919790-23-1 |
| Molecular Formula | C21H23N3O3 |
| Molecular Weight | 365.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Benzamido-N-butyl-4-(4,5-dihydrooxazol-2-yl)benzamide (CAS 919790-23-1), molecular formula C21H23N3O3 and molecular weight 365.43 g/mol, is a CATO reference standard with documented purity and traceability.
2-Benzamido-N-butyl-4-(4,5-dihydrooxazol-2-yl)benzamide (C21H23N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 | C21H23N3O3 |
| Molecular Weight | 365.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 3-(4-Methoxyphenyl)-N-[4-(propan-2-yl)phenyl]-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-19-7)
- 3-Propoxypyridazine (CAS 748141-89-1)
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- Methyl 6-(2-(3,4-diethoxyphenyl)thiazol-4-yl)picolinate (CAS 160322-91-8)
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- 1-Cyclopropyl-N~2~-methyl-N~2~-phenylethane-1,2-diamine (CAS 1342365-95-0)
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