The molecule is a long-chain fatty acid anion and the conjugate base of crepenynic acid, arising from deprotonation of the carboxylic acid group. It is a long-chain fatty acid anion, a straight-chain fatty acid anion and an unsaturated fatty acid anion. It is a conjugate base of a (9Z)-octadec-9-en-12-ynoic acid.
(Z)-octadec-9-en-12-ynoate