(3S,4R)-tert-Butyl 2-oxo-4-phenyl-3-((triethylsilyl)oxy)azetidine-1-carboxylate CAS 944154-74-9
| CAS No. | 944154-74-9 |
| Molecular Formula | C20H31NO4Si |
| Molecular Weight | 377.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(3S,4R)-tert-Butyl 2-oxo-4-phenyl-3-((triethylsilyl)oxy)azetidine-1-carboxylate (CAS 944154-74-9), molecular formula C20H31NO4Si and molecular weight 377.55 g/mol, is a CATO reference standard with documented purity and traceability.
(3S,4R)-tert-Butyl 2-oxo-4-phenyl-3-((triethylsilyl)oxy)azetidine-1-carboxylate (C20H31NO4Si) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), (3S,4R)-tert-Butyl 2-oxo-4-phenyl-3-((triethylsilyl)oxy)azetidine-1-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H31NO4Si |
| Molecular Weight | 377.55 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Recommended Standards
- cis-tert-Butyl 2-oxo-4-phenyl-3-((triethylsilyl)oxy)azetidine-1-carboxylate (CAS 149107-85-7)
- Docetaxel Impurity 9 (CAS 149198-47-0)
- Ethyl 8-oxo-8-[4-(thiomorpholinomethyl)phenyl]octanoate (CAS 898783-41-0)
- Ethyl 7-chloro-6-iodo-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 1021913-01-8)
- 2,3-diamino-1-phenylbutan-1-ol dihydrochloride (CAS 2060020-52-0)
- 4-chloro-2-[3-(2-methylpropyl)-1,2,4-oxadiazol-5-yl]aniline (CAS 1040329-41-6)
- 1-Hydroxy-5,6,7,8-tetrahydronaphthalene-2-carbaldehyde (CAS 86295-45-6)
- (6-(2,4-Dimethylpentan-3-yl)pyridin-3-yl)methanol (CAS 2137771-46-9)
- 4-Mesitylbutan-2-one (CAS 195259-08-6)
- 3-[1-(4-methylbenzenesulfonyl)-3-(trifluoromethyl)-1h-pyrazol-4-yl]propyl 4-methylbenzene-1-sulfonate (CAS 1019069-06-7)
- 2-(2-Bromo-5-chlorophenyl)ethan-1-amine hydrochloride (CAS 1423025-45-9)
- 3-Cyclopentyl-N-((2-formylbenzyl)oxy)-2-(hydroxymethyl)propanamide (CAS 301685-10-9)
- Pitavastatin Impurity 41 (CAS CATO-C4X-103741)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com