ethyl (5E,8E,11E,14E)-nonadeca-5,8,11,14-tetraenoate CAS CATO-C4X-289030

Purity >90%In StockPharmaceutical Standards
CAS No.CATO-C4X-289030
Molecular FormulaC21H34O2
Molecular Weight318.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

ethyl (5E,8E,11E,14E)-nonadeca-5,8,11,14-tetraenoate CAS CATO-C4X-289030 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

ethyl (5E,8E,11E,14E)-nonadeca-5,8,11,14-tetraenoate (CAS CATO-C4X-289030) is a high-purity analytical reference standard with the molecular formula C21H34O2 and a molecular weight of 318.49 g/mol.

Owing to a steroid core, a hydroxyl group, an ether linkage, ethyl (5E,8E,11E,14E)-nonadeca-5,8,11,14-tetraenoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 318.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), ethyl (5E,8E,11E,14E)-nonadeca-5,8,11,14-tetraenoate 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 FormulaC21H34O2
Molecular Weight318.49 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>90%
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

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