CN1CN(C)c2c1[nH]c(=O)[nH]c2=O mol29550 0_1 CN1C[NH+](C)c2c1[nH]c(=O)[nH]c2=O mol29550 1_1 CN1CN(C)c2c1[nH]c(=[OH+])[nH]c2=O mol29550 1_2 CN1CN(C)c2c1[nH]c(=O)[nH]c2=[OH+] mol29550 1_3 CN1C[NH+](C)c2[nH]c(=O)[nH]c(=O)c21 mol29550 1_4