has role has role is conjugate acid of oxalate oxalic acid OXALIC ACID Oxalic acid H2ox CHEBI:25730 Oxalsaeure OXALIC ACID Ethanedioic acid Ethandisaeure Oxalic acid CHEBI:44583 An α,ω-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. ethane-1,2-dioic acid chebi_ontology CHEBI:7811 CHEBI:16995 HOOCCOOH alpha,omega-dicarboxylic acid oxalate(1-) plant metabolite human metabolite algal metabolite