Estr-4-en-17b-ol CAS 3646-30-8

Purity 97%+In StockPharmaceutical Standards
CAS No.3646-30-8
Molecular FormulaC18H28O
Molecular Weight260.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Estr-4-en-17b-ol CAS 3646-30-8 chemical structure

Description

As a certified reference material (CRM), Estr-4-en-17b-ol 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.

Estr-4-en-17b-ol (CAS 3646-30-8), molecular formula C18H28O and molecular weight 260.41 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H28O, Estr-4-en-17b-ol contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC18H28O
Molecular Weight260.41 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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Why CATO?