The chemical MCPA-thioethyl has a known molecular formula of C11-H13-Cl-O2-S. Synonyms may include: EINECS 246-831-4, S-Ethyl (4-chloro-2-methylphenoxy)ethanethioate (9CI), S-Ethyl ((4-chloro-o-tolyl)oxy)thioacetate (8CI), Ethylester kyseliny 4-chlor-2-tolyloxythiooctove [Czech], Herbit, HOK 7501, 2-Methyl-4-chlorophenoxythiol acetic acid S-ethyl ester, Phenothiol, Tripion CB, Zero one (ChemID).