alpha-Zearalanol CAS 26538-44-3

Purity >95%In StockPharmaceutical Standards
CAS No.26538-44-3
Molecular FormulaC18H26O5
Molecular Weight322.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

alpha-Zearalanol CAS 26538-44-3 chemical structure

Description

As a certified reference material (CRM), alpha-Zearalanol 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.

CATO supplies alpha-Zearalanol (CAS 26538-44-3), a certified reference material (molecular formula C18H26O5, MW 322.40 g/mol) for analytical method development and quality control.

alpha-Zearalanol (C18H26O5) contains a steroid core, a hydroxyl group, an ether linkage. 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).

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.

Physical & Chemical Properties

Molecular FormulaC18H26O5
Molecular Weight322.40 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964

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