-oate

The suffix -oate is the IUPAC nomenclature used in organic chemistry to form names of compounds formed from carboxylic acids. They are of two types:- The suffix is derived from "-oic acid".
 * Formed by replacing the hydrogen atom in the -COOH by some other radical, for example methyl benzoate C6H5-CO-OCH3
 * Formed by removing the nucleus (proton) of the hydrogen atom in the -COOH, producing an anion: then add a cation, for example sodium benzoate C6H5-CO-O- Na+