Ammonium ferric citrate

Aliase: 2-Hydroxypropane-1,2,3-tricarboxylate, ammonium iron(3+) salt;    Ammonium iron(III) citrate

CAS No.: 1185-57-5

MF: C6H5+4yFexNyO7

EC No.: 214-686-6

Appearance: Reddish-brown powder

InChI=1S/C6H8O7.Fe.H3N/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;1H3/q;+3;/p-2

Ammonium ferric citrate is a food additive with E number E381 used as an acidity regulator. It is a green or reddish-brown powder which is very soluble in water.

In medicine, ammonium ferric citrate is used as a contrast medium. It is also used as a hematinic.