Synonyms: citric acid, ammonium zinc salt;2-Hydroxy-1,2,3-propanetricarboxylic acid/ammonia/zinc,(1:x:x) salt;1,2,3-Propanetricarboxylic acid, 2-hydroxy-, ammonium zinc salt;1,2,3-Propanetricarboxylic acid, 2-hydroxy-, ammonium zinc salt (1::);Einecs 268-722-0