(24RS)-Ergosta-3,5-Diene CAS 77327-07-2

Purity 97%+In StockPharmaceutical Standards
CAS No.77327-07-2
Molecular FormulaC28H46
Molecular Weight382.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(24RS)-Ergosta-3,5-Diene CAS 77327-07-2 chemical structure

Description

CATO supplies (24RS)-Ergosta-3,5-Diene (CAS 77327-07-2), a certified reference material (molecular formula C28H46, MW 382.66 g/mol) for analytical method development and quality control.

The molecular framework of (24RS)-Ergosta-3,5-Diene (C28H46) is characterized by an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), (24RS)-Ergosta-3,5-Diene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC28H46
Molecular Weight382.66 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979

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