(R)-5-(((tert-butyldiphenylsilyl)oxy)methyl)pyrrolidin-2-one CAS 138629-44-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138629-44-4 |
| Molecular Formula | C21H27NO2Si |
| Molecular Weight | 353.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-5-(((tert-butyldiphenylsilyl)oxy)methyl)pyrrolidin-2-one (CAS 138629-44-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H27NO2Si. Molecular weight: 353.53 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H27NO2Si |
| Molecular Weight | 353.53 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (S)-5-(((tert-butyldiphenylsilyl)oxy)methyl)pyrrolidin-2-one (CAS 132974-83-5)
- 2-((5-(Benzylthio)-1,3,4-thiadiazol-2-yl)thio)-N,N-diethylacetamide (CAS 476486-10-9)
- 3-(Benzyloxy)-2-(3-((tert-butyldimethylsilyl)oxy)prop-1-yn-1-yl)pyridine (CAS 1228666-14-5)
- Methyl 2-Bromothiazole-4-carboxylate (CAS 170235-26-4)
- 4-Methyl-2-((2-methylcyclohexyl)amino)pentan-1-ol (CAS 1247472-83-8)
- 3-(3-Methoxyphenyl)-6-(pentafluoro-λ6-sulfanyl)benzo[c]isoxazole (CAS 1379812-13-1)
- 4-Bromo-3-methoxy-5-methylpyridine (CAS 1256825-97-4)
- Lithium Stearate (CAS 4485-12-5)
- Tert-butyl (R)-3-(aminomethyl)-3-methylpiperidine-1-carboxylate (CAS 2091248-03-0)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
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 13829788188 / jacky.chen@cato-chem.com