9(E),11(E),13(E)-Octadecatrienoic Acid CAS 544-73-0

Purity >95%In StockPharmaceutical Standards
CAS No.544-73-0
Molecular FormulaC18H30O2
Molecular Weight278.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

9(E),11(E),13(E)-Octadecatrienoic Acid CAS 544-73-0 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.

CATO supplies 9(E),11(E),13(E)-Octadecatrienoic Acid (CAS 544-73-0), a certified reference material (molecular formula C18H30O2, MW 278.43 g/mol) for analytical method development and quality control.

Based on its molecular formula C18H30O2, 9(E),11(E),13(E)-Octadecatrienoic Acid 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 278.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

As a certified reference material (CRM), 9(E),11(E),13(E)-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
Purity>95%
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.)1957

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