3-tert-Butyldimethylsilyloxy Pregnenolone CAS 58701-45-4

Purity 97%+In StockPharmaceutical Standards
CAS No.58701-45-4
Molecular FormulaC27H46O2Si
Molecular Weight430.74 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-tert-Butyldimethylsilyloxy Pregnenolone CAS 58701-45-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 430.74 g/mol gives 3-tert-Butyldimethylsilyloxy Pregnenolone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-tert-Butyldimethylsilyloxy Pregnenolone (CAS 58701-45-4), molecular formula C27H46O2Si and molecular weight 430.74 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-tert-Butyldimethylsilyloxy Pregnenolone (C27H46O2Si) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 430.74 g/mol, it falls into the moderately-high-molecular-weight range. 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).

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 FormulaC27H46O2Si
Molecular Weight430.74 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973

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