2-butenoic acid methyl 3-hydroxybut-2-enoate Beilstein:1922453 0 C5H8O3 116.11522 CHEBI:38726 methyl 3-hydroxybut-2-enoate chebi_ontology COC(=O)C=C(C)O DHVOJYDALVUWPZ-UHFFFAOYSA-N InChI=1S/C5H8O3/c1-4(6)3-5(7)8-2/h3,6H,1-2H3 116.04734 fatty acid methyl ester