3β-tert-Butyldimethylsilyloxy Epiandrosterone (1.0mg/ml in Acetonitrile) CAS 57711-44-1
| CAS No. | 57711-44-1 |
| Molecular Formula | C25H44O2Si |
| Molecular Weight | 404.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3β-tert-Butyldimethylsilyloxy Epiandrosterone (1.0mg/ml in Acetonitrile) (C25H44O2Si) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 3β-tert-Butyldimethylsilyloxy Epiandrosterone (1.0mg/ml in Acetonitrile) (CAS 57711-44-1), a certified reference material (molecular formula C25H44O2Si, MW 404.70 g/mol) for analytical method development and quality control.
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 | C25H44O2Si |
| Molecular Weight | 404.70 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related tert Standards
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