Nc1cccc2c1C(=O)c1ccccc1C2=O    mol33199    0_1
[NH3+]c1cccc2c1C(=O)c1ccccc1C2=O    mol33199    1_1
Nc1cccc2c1C(=[OH+])c1ccccc1C2=O    mol33199    1_2
Nc1cccc2c1C(=O)c1ccccc1C2=[OH+]    mol33199    1_3