CC(C)(C)c1cc(N)ncn1 euroSAMPL-04 0_1 CC(C)(C)c1cc(N)[nH+]cn1 euroSAMPL-04 1_1 CC(C)(C)c1cc([NH3+])ncn1 euroSAMPL-04 1_2 CC(C)(C)c1cc(N)nc[nH+]1 euroSAMPL-04 1_3