N-(3,3-Dimethyl-4-oxo-5-propyl-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-ethoxyacetamide CAS 921521-95-1
| CAS No. | 921521-95-1 |
| Molecular Formula | C18H26N2O4 |
| Molecular Weight | 334.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(3,3-Dimethyl-4-oxo-5-propyl-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-ethoxyacetamide (CAS 921521-95-1) is a high-purity analytical reference standard with the molecular formula C18H26N2O4 and a molecular weight of 334.41 g/mol.
The molecular framework of N-(3,3-Dimethyl-4-oxo-5-propyl-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-ethoxyacetamide (C18H26N2O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
CATO manufactures N-(3,3-Dimethyl-4-oxo-5-propyl-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-ethoxyacetamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H26N2O4 |
| Molecular Weight | 334.41 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 6-(2-Hydroxyethyl)-9H-purine (CAS 948037-49-8)
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- (2R)-4-Oxo-2-oxetanecarboxylic Acid Ethyl Ester (CAS 107285-64-3)
- 2-(Acetoxymethyl)-4-bromobutyl Acetate (CAS 126589-82-0)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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