Linoleic acid is an organic compound with the formula HOOC(CH₂)₇CH=CHCH₂CH=CH(CH₂)₄CH₃. Both alkene groups are cis. It is a fatty acid sometimes denoted 18:2 or 18:2 cis-9,12. A linoleate is a salt or ester of this acid. Linoleic acid is a... Wikipedia