is conjugate base of crotonate (2E)-2-butenoate (2E)-but-2-enoate (E)-2-butenoate (E)-crotonate 2-butenoate 3-methylacrylate 85.029 85.08130 C4H5O2 CHEBI:35899 InChI=1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/p-1/b3-2+ LDHQCZJRKDOVOX-NSCUHMNNSA-M MetaCyc:CROTONATE PMID:7387331 PMID:8867639 The conjugate base of crotonic acid; used by some bacterial species as a carbon and energy source. [H]\C(C)=C/C([O-])=O alpha-butenoate alpha-crotonate beta-methacrylate beta-methylacrylate chebi_ontology trans-2-butenoate trans-crotonate but-2-enoate crotonic acid