CPC Main Group C01G 3/00 Compounds of copper 8 direct subcodes Child Classifications Navigate with arrow keys, Enter to open C01G 3/003 C01G 3/006 C01G 3/02 Oxides; Hydroxides C01G 3/04 Halides C01G 3/08 Nitrates C01G 3/10 Sulfates C01G 3/12 Sulfides C01G 3/14 Complexes with ammonia