A chlorophenoxyacetic acid that is (4-chlorophenoxy)acetic acid substituted by a methyl group at position 2. ChEBI: (4-chloro-2-methylphenoxy)acetic acid is a chlorophenoxyacetic acid that is (4-chlorophenoxy)acetic acid substituted by a methyl group at position 2. It has a role as a synthetic auxin, a phenoxy herbicide and an environmental contaminant. It is a chlorophenoxyacetic acid and a member of monochlorobenzenes. It is a conjugate acid of a (4-chloro-2-methylphenoxy)acetate.