((2R,7aS)-2-((tert-Butyldiphenylsilyl)oxy)tetrahydro-1H-pyrrolizin-7a(5H)-yl)methanol CAS 2791271-76-4
| CAS No. | 2791271-76-4 |
| Molecular Formula | C24H33NO2Si |
| Molecular Weight | 395.61 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.
((2R,7aS)-2-((tert-Butyldiphenylsilyl)oxy)tetrahydro-1H-pyrrolizin-7a(5H)-yl)methanol (CAS 2791271-76-4), molecular formula C24H33NO2Si and molecular weight 395.61 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of ((2R,7aS)-2-((tert-Butyldiphenylsilyl)oxy)tetrahydro-1H-pyrrolizin-7a(5H)-yl)methanol (C24H33NO2Si) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C24H33NO2Si |
| Molecular Weight | 395.61 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.) | 2003 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl (2R,3S)-2-Benzylamino-2-(t-butyldimethylsilyloxymethyl)-3-hydroxy-4-methylpentanoate (CAS 145451-92-9)
- ((2S,7aR)-2-((tert-Butyldiphenylsilyl)oxy)tetrahydro-1H-pyrrolizin-7a(5H)-yl)methanol (CAS 2791271-70-8)
- N-((Benzyl(methyl)(phenyl)silyl)methyl)-4-methylbenzenesulfonamide (CAS 2779684-47-6)
- 3-(4-Bromophenyl)-1-(3-chloro-4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-64-0)
- (2-(O-tolyl)pyrimidin-4-yl)methanamine (CAS 1211506-84-1)
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- Ro 5-3335 (CAS 30195-30-3)
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