1,2-Ethenedicarboxylic acid, trans- 1,2-Ethylenedicarboxylic acid, (E) 110-17-8 2-Butenedioic acid (E)- 2-Butenedioic acid, (E)- Allomaleic acid Boletic acid Butenedioic acid, (E)- FUMARIC ACID Kyselina fumarova Lichenic acid NSC-2752 NSC2752 Tumaric acid U-1149 Usaf ek-p-583 WLN: QV1U1VQ-T trans-1,2-Ethylenedicarboxylic acid trans-Butenedioic acid