O=C1Nc2cncnc2NC1=C1Nc2ncncc2NC1=O    mol15062    0_1
O=C1Nc2cncnc2NC1=C1Nc2[nH+]cncc2NC1=O    mol15062    1_1
O=C1Nc2cncnc2NC1=C1Nc2nc[nH+]cc2NC1=O    mol15062    1_2
O=C1Nc2cncnc2NC1=C1[NH2+]c2ncncc2NC1=O    mol15062    1_3