2-methylbut-2-enoic acid反式-2-甲基-2-丁烯酸trans-2-Methyl-2-butenoic acid反式-2,3-二甲基丙烯酸trans-2-Methyl-2-butenoic acidtrans-2,3-Dimethylacrylic acid顺芷酸Tiglic acidtrans-2,3-Dimethylacrylic acid反式-2,3-二甲基丙烯酸反式-2-甲基-2-丁烯酸(E)-2-Methyl-2-butenoic acidTIGLIC ACIDcevadic acid(E)-2-Methylcrotonic Acid(E)-2,3-Dimethylacrylic Acidtiglinic acidNSC 44235(E)-α-Methylcrotonic acidtrans-α,β-Dimethylacrylic Acid(2E)-2-Methyl-2-butenoic AcidNSC 8999trans-2-Methylcrotonic Acid(E)-2-methylbut-2-enoic acidsabadillic acid顺芷酸Tiglic acidTrans-α,β-DIMETHYLACRYLIC ACIDAngelic acid惕各酸