NSC311462 Platinum(1+), (1,2-cyclohexanediamine-N,N')(2-thiophenecarboxylato-O(2),S(1))-, (SP-4-3) Platinum(1+), (1,2-cyclohexanediamine-N,N')(2-thiophenecarboxylato-O2,S1)-, (SP-4-3)