α-Eleostearic acid or (9Z,11E,13E)-octadeca-9,11,13-trienoic acid, is an organic compound, a conjugated fatty acid and one of the isomers of octadecatrienoic acid. It is often called simply eleostearic acid although there is also a β-eleostearic acid (the all-trans or (9E,11E,13E) isomer). Its high degree of unsaturation gives tung oil its properties as a drying oil.

CAS：506-23-0
中文别名：
英文别名：9(Z),11(E),13(E)-OCTADECATRIENOIC ACID;9,11,13-Octadecatrienoic acid, (E,Z,E)-;a-Eleostearic Acid;(9Z,11E,13E)-9,11,13-Octadecatrienoic acid;α-ELEOSTEARIC ACID;9-cis,11-trans,13-trans-octadecatrienoic acid;
分子式：C18H30O2
分子量：278.43
精确质量：278.225
Psa：37.3
Logp：5.6605

UNII：934U1Q8QHG

密度：0.924g/cm3
沸点：390.6ºC at 760mmHg
闪点：287.4ºC
折射率：1.49