CPC Main Group C01C 3/00 Cyanogen; Compounds thereof 14 direct subcodes Child Classifications Navigate with arrow keys, Enter to open C01C 3/001 C01C 3/002 C01C 3/003 C01C 3/004 C01C 3/005 C01C 3/006 C01C 3/007 C01C 3/008 C01C 3/02 Preparation, of hydrogen cyanide C01C 3/06 Stabilisation of hydrogen cyanide C01C 3/08 Simple or complex cyanides of metals C01C 3/14 Cyanic acid; Salts thereof C01C 3/16 Cyanamide; Salts thereof (; dicyandiamide C07C279/28) C01C 3/20 Thiocyanic acid; Salts thereof