Carboxylate

In chemistry, a carboxylate is an anion with the general formula RCOO (or RCO2). Carboxylate salts are salts that have the general formula M(RCOO)n, where M is a metal and n is 1, 2,.... Carboxylate esters have the general formula RCOOR′ (also written as RCO2R′), where R and R′ are organic groups.