2-butenoic acid, 2,4-dichloro-3-methyl-, methyl ester, (2E)- InChI=1/C6H8Cl2O2/c1-4(3-7)5(8)6(9)10-2/h3H2,1-2H3/b5-4 methyl (2E)-2,4-dichloro-3-methylbut-2-enoate