has role citrate anion calcium chelator tricarboxylic acid citric acid E330 3-Carboxy-3-hydroxypentane-1,5-dioic acid KEGG:D00037 CHEBI:3727 Citronensaeure CHEBI:23322 A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. Citric acid PDBeChem:CIT KNApSAcK:C00007619 MetaCyc:CIT BPDB:1359 Wikipedia:Citric_Acid CITRIC ACID 2-Hydroxy-1,2,3-propanetricarboxylic acid HMDB:HMDB0000094 2-hydroxypropane-1,2,3-tricarboxylic acid CHEBI:41523 2-Hydroxytricarballylic acid KEGG:C00158 DrugBank:DB04272 H3cit CHEBI:30769 antimicrobial agent citrate(1-) chelator food acidity regulator fundamental metabolite