organic acid
any organic compound with an acid group (e.g. carboxyl group, sulfo group)
saccharin
chemical compound
humic acid
group of organic acids
barbituric acid
chemical compound
carboxylic acid
oxoacid having the structure RC(=O)OH, used as a suffix in systematic name formation to denote the –C(=O)OH group including its carbon atom
amino acid
organic compound containing both amino and acidic functional groups, important in biology
cyanuric acid
chemical compound belonging to the class of triazine
ortho acid
hypothetical organic molecules of the form R–C(OH)3