benzyl (2R)-2-methyl-3-oxoazetidine-1-carboxylate CAS 406220-14-2
| CAS No. | 406220-14-2 |
| Molecular Formula | C12H19NO3 |
| Molecular Weight | 225.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
benzyl (2R)-2-methyl-3-oxoazetidine-1-carboxylate (CAS 406220-14-2) is a high-purity analytical reference standard with the molecular formula C12H19NO3 and a molecular weight of 225.28 g/mol.
Structurally, benzyl (2R)-2-methyl-3-oxoazetidine-1-carboxylate (C12H19NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 225.28 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H19NO3 |
| Molecular Weight | 225.28 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 7,7,9,9-Tetramethyl-4-methylene-1,3-dioxa-8-azaspiro[4.5]Decan-2-one (CAS 309283-87-2)
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- 6-Boc-6-azaspiro[3.4]octan-2-one (CAS 203661-71-6)
- Cis-methyl 4-(2-oxopyrrolidin-1-yl)cyclohexanecarboxylate (CAS 820232-34-6)
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- Semaglutide impurity 29 (CAS 110990-08-4)
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