1,2-Ethylenedicarboxylic acid, (Z) 10237-70-4 110-16-7 18016-19-8 2-Butenedioic acid 2-Butenedioic acid (2Z)- 2-Butenedioic acid (Z)- 2-Butenedioic acid (Z)- (9CI) 2-Butenedioic acid, (Z)- 3105-55-3 371-47-1 37449-49-3 4-02-00-02199 (Beilstein Handbook Reference) 44742-89-4 AI3-01002 BRN 0605762 Butenedioic acid, (Z)- CCRIS 1115 EINECS 203-742-5 HSDB 666 Kyselina maleinova [Czech] MALEIC ACID Maleic acid [NA2215] [Corrosive] Maleinic acid Malenic acid NA2215 NSC 25940 Toxilic acid cis-1,2-Ethylenedicarboxylic acid cis-Butenedioic acid