That's copper acetate. Copper is Cu, and the acetate polyatomic ion is C2H3O2, although copper's most common valence state is +2, so the more likely formula would be Cu(C2H3O2)2. (acetate has a -1 charge.)
Its Copper (I) Acetate.
It is Gold(l) Acetate.
It could be acetate ion, CH3COO- ion.
Copper(II) Acetate Monohydrate
Its the compound known as Sether
Copper Acetate
Copper (I) Acetate