1,2,3-Propanetricarboxylic acid, 2-hydroxy-, iron(3+) sodium salt (1:1:1), mixt. with iron(3+) diphosphate 1332-96-3 FERRIC PYROPHOSPHATE, SOLUBLE Iron(III) pyrophosphate, soluble Pyrophosphoric acid, iron salt, soluble Sodium ferricitropyrophosphate Troph-iron Trophite + iron