CC(=O)Cc1nc2cccnc2n(C)c1=O mol7999 0_1 CC(=O)Cc1[nH+]c2cccnc2n(C)c1=O mol7999 1_1 CC(=O)Cc1nc2ccc[nH+]c2n(C)c1=O mol7999 1_2