The molecule is a monocarboxylic acid anion that is the conjugate base of (R)-2-(4-chloro-2-methylphenoxy)propanoic acid, obtained by deprotonation of the carboxy group. It is a conjugate base of a (R)-mecoprop. It is an enantiomer of a (S)-2-(4-chloro-2-methylphenoxy)propanoate.
(2R)-2-(4-chloro-2-methylphenoxy)propanoate