18,19-Dinorcholestane, 5,14-dimethyl-, (5β,8α,9β,10α,14β) CAS 57030-15-6

Purity 97%+In StockPharmaceutical Standards
CAS No.57030-15-6
Molecular FormulaC27H48
Molecular Weight372.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

18,19-Dinorcholestane, 5,14-dimethyl-, (5β,8α,9β,10α,14β) CAS 57030-15-6 chemical structure

Description

18,19-Dinorcholestane, 5,14-dimethyl-, (5β,8α,9β,10α,14β) (CAS 57030-15-6), molecular formula C27H48 and molecular weight 372.67 g/mol, is a CATO reference standard with documented purity and traceability.

18,19-Dinorcholestane, 5,14-dimethyl-, (5β,8α,9β,10α,14β) (C27H48) contains an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC27H48
Molecular Weight372.67 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973

Recommended Standards

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