(3R,4S)-3-[(Triethylsilyl)oxy]-4-phenyl-2-azetidinone CAS 149140-54-5
| CAS No. | 149140-54-5 |
| Molecular Formula | C15H23NO2Si |
| Molecular Weight | 277.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C15H23NO2Si, (3R,4S)-3-[(Triethylsilyl)oxy]-4-phenyl-2-azetidinone contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 277.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
(3R,4S)-3-[(Triethylsilyl)oxy]-4-phenyl-2-azetidinone (CAS 149140-54-5) is a high-purity analytical reference standard with the molecular formula C15H23NO2Si and a molecular weight of 277.43 g/mol.
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 | C15H23NO2Si |
| Molecular Weight | 277.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
Recommended Standards
- rel-N-[(1R,2R)-2-(Dimethylamino)cyclohexyl]-N′-phenylthiourea (CAS 1398733-83-9)
- 5-Cyclohexyl-1-phenyl-1,3,5-triazinane-2-thiol (CAS 1858250-41-5)
- tert-Butyl 4,4-dimethyl-3,4-dihydrobenzo[b][1,4]azasiline-1(2H)-carboxylate (CAS 1370735-24-2)
- (3R,4S)-4-phenyl-3-((triethylsilyl)oxy)azetidin-2-one (CAS 661489-72-1)
- (S)-N-Isopropyl-N-methylpiperidin-3-amine (CAS 1354002-15-5)
- Ethyl 6-amino-5-methoxy-3H-indole-2-carboxylate hydrochloride (CAS 1189986-62-6)
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- tert-Butyl (1S,4S)-2,5-diazabicyclo[2.2.1]heptane-2-carboxylate hydrochloride (CAS 1404553-01-0)
- Cytarabine EP Impurity G (CAS 2140-61-6)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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