Anteiso-

Name:
Anteiso-
Detailed information:
Prefix denoting an isomer (usually a fatty acid or derivative) that has a single, simple branching attached at the third carbon from the end of a straight chain, in distinction to an iso- compound, where the attachment is to the second carbon from the end. For example, isododecanoic acid would be CH₃CH(CH₃)(CH₂)₈COOH, while anteisododecanoic acid would be CH₃CH₂CH(CH₃)(CH₂)₇COOH.