(9Z,12E,15Z)-Octadecatrienoic Acid CAS 21661-08-5

Purity 97%+In StockPharmaceutical Standards
CAS No.21661-08-5
Molecular FormulaC18H30O2
Molecular Weight278.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(9Z,12E,15Z)-Octadecatrienoic Acid CAS 21661-08-5 chemical structure

Description

Owing to a steroid core, a hydroxyl group, an ether linkage, (9Z,12E,15Z)-Octadecatrienoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 278.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

(9Z,12E,15Z)-Octadecatrienoic Acid (CAS 21661-08-5), molecular formula C18H30O2 and molecular weight 278.43 g/mol, is a CATO reference standard with documented purity and traceability.

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), (9Z,12E,15Z)-Octadecatrienoic Acid 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 FormulaC18H30O2
Molecular Weight278.43 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

Recommended Standards

Why CATO?