Copper(II) stearate is a metal-organic compound, a salt of copper and stearic acid with the formula Cu(C17H35COO)2.

Exchange reaction of sodium stearate and copper sulfate:[4][5] Copper(II) stearate forms a blue-green amorphous substance[6] similar to plasticine both in appearance and touch.

Insoluble in water, ethanol, or ether; soluble in pyridine.

[7] The compound is stable and non-reactive under normal conditions.

[8] When trying to ignite, copper stearate first melts and then begins to burn with a green (at the base) flame, then it quickly turns black due to the formation of cupric oxide: The compound is used in the production of antifouling paint and varnish materials.