Copper citrate

Copper citrate (CAS 10402-15-0, EC 641-381-9), also referred to as cupric citrate or copper(II) citrate, is an inorganic copper salt formed from citric acid. It carries no assigned E-code and is classified under salts and minerals. The molecular formula is C6H8O7.xCu, reflecting a variable copper coordination.

In agriculture and animal feed, copper citrate serves as a bioavailable copper source, delivering the trace mineral in a form that supports metabolic enzyme function in livestock. In water treatment and preservation applications, the copper ion acts as a biocide by disrupting microbial cell membranes, while the citrate ligand enhances solubility and controlled release at low concentrations.

Copper citrate is sourced in solid form and may be supplied to food-grade or feed-grade specifications depending on application requirements. Buyers should confirm compliance with REACH registration obligations and relevant national feed additive regulations. Packaging formats are available on request.