68201-66-1 Bis((2-(3-oxo-3-(2-oxocyclopentyl)propyl)-p-phenylene bis(ethyl carbonato))(1-))copper Copper, bis((2-(3-(oxo-kappaO)-3-(2-(oxo-kappaO)cyclopentyl)propyl)-1,4-phenylene bis(ethyl carbonato))(1-))- EINECS 269-231-4