Citric acid isopropyl ester

The composition of commercially available isopropyl citrate is 65 to 80 percent monoisopropyl, 15 to 30 percent diisopropyl, and 5 to 10 percent triisopropyl citrate.

Viscous colorless syrup. Crystallizes upon standing.

Food additive.

Isopropyl Citrate (Mixture) is an antioxidant that reacts with metal ions that might catalyze oxidative reactions and thus will prevent rancidity. It is made by reacting citric acid (not soluble in fats and oils) with isopropyl alcohol (which readily dissolves in oil) and thus enables the citrate to dissolve in oil. It is used in vegetable oils.

Monoisopropyl Citrate is a sequestrant used in fats and oils.