methyl4-bromo-2-butenoate, Methyl trans-4-Bromo-2-butenoate, TRANS-METHYL-4-BROMOCROTONATE, Methyl bromocrotonate, methyl 4-bromo-crotonate, 2-Butenoic acid, 4-bromo-, methyl ester, 4-bromocrotonic acid methyl ester, Methyl 4-Bromocrotonate, trans-4-Bromo-2-butenoic Acid Methyl Ester, Methyl 4-bromobut-2-enoate, Methyl Trans-4-Bromocrotonate