-oate

Suffix used in organic chemistry

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:Formed by replacing the hydrogen atom in the –COOH by some other radical, usually an alkyl or aryl radical forming an ester. For example, methyl benzoate is a molecular compound with the structure C6H5–CO–O–CH3, and its condensed structural formula usually written as C6H5COOCH3. Formed by removing the hydrogen atom in the –COOH, producing an anion, which joins with a cation forming a salt. For example, the sodium benzoate is an ionic compound with the structure C6H5–CO–O− Na+, and its condensed structural formula usually written as C6H5CO2Na.

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