carboxylic acid 0 44.998 45.01740 A carbon oxoacid acid carrying at least one -C(=O)OH group and having the structure RC(=O)OH, where R is any any monovalent functional group. Carboxylic acids are the most common type of organic acid. CHEBI:13428 CHEBI:13627 CHEBI:23027 CHEBI:33575 CHO2R Carbonsaeure Carbonsaeuren Karbonsaeure OC([*])=O PMID:17147560 PMID:18433345 RC(=O)OH Wikipedia:Carboxylic_acid acide carboxylique acides carboxyliques acido carboxilico acidos carboxilicos carboxylic acid carboxylic acids chebi_ontology carbon oxoacid carbonyl compound organic molecular entity