[Wikipedia] In chemistry, a carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula of CO2− 3. The name may also refer to a carbonate ester, an organic compound containing the carbonate group C(=O)(O–)2.
[ChEBI] Organooxygen compounds that are salts or esters of carbonic acid, H2CO3.
Carbonate
Chemical entity