1,2,3-Propanetricarboxylic acid, 2-hydroxy-, cerium(3+) salt (1:1) (9CI) 512-24-3 CERIUM CITRATE Cerium(3+) 2-hydroxypropane-1,2,3-tricarboxylate Cerium(III) citrate Cerous citrate EINECS 208-139-0