Tert-butyl 4-(2-oxo-5-phenyloxazolidin-3-yl)piperidine-1-carboxylate CAS 521979-95-3
| CAS No. | 521979-95-3 |
| Molecular Formula | C19H26N2O4 |
| Molecular Weight | 346.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tert-butyl 4-(2-oxo-5-phenyloxazolidin-3-yl)piperidine-1-carboxylate (CAS 521979-95-3), molecular formula C19H26N2O4 and molecular weight 346.42 g/mol, is a CATO reference standard with documented purity and traceability.
Tert-butyl 4-(2-oxo-5-phenyloxazolidin-3-yl)piperidine-1-carboxylate (C19H26N2O4) contains a flavonoid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C19H26N2O4 |
| Molecular Weight | 346.42 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Tert-butyl 2-(((benzyloxy)carbonyl)amino)-7-azabicyclo[2.2.1]Heptane-7-carboxylate (CAS 500556-92-3)
- Tert-butyl 4-cyano-4-(3,4-dimethoxyphenyl)piperidine-1-carboxylate (CAS 666179-93-7)
- Tert-butyl (1S,4S)-5-(4-(methoxycarbonyl)benzyl)-2,5-diazabicyclo[2.2.1]Heptane-2-carboxylate (CAS 927679-46-7)
- Trichorabdal A (CAS 85329-59-5)
- 3'-Chloro-3,4'-dimethyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 1994157-12-8)
- 2-Methyl-1H-benzo[d]imidazole-4-carboxamide (CAS 181135-47-7)
- 4-(4-(Benzo[d][1,3]dioxol-5-yl)-5-(pyridin-2-yl)-1H-imidazol-2-yl)benzoic acid (CAS 301836-35-1)
- (5-Chloro-2-propoxyphenyl)boronic Acid (CAS 849062-29-9)
- 2,2'-((2-(6-(Methylamino)-9H-purin-9-yl)acetyl)azanediyl)diacetic acid (CAS 918334-51-7)
- 2-Amino-N-isopropylthiazole-5-sulfonamide (CAS 920281-02-3)
- (E)-4-((5-(3-nitrophenyl)furan-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 300731-59-3)
- tert-Butyl(dibromomethyl)dimethylsilane (CAS 148259-35-2)
- [2-(hydroxymethyl)tetrahydrofuran-2-yl]methanol (CAS 13386-57-7)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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