Nc1cccc(-c2nc3ccccc3s2)c1 mol14494 0_1 [NH3+]c1cccc(-c2nc3ccccc3s2)c1 mol14494 1_1 Nc1cccc(-c2[nH+]c3ccccc3s2)c1 mol14494 1_2 [NH3+]c1cccc(-c2[nH+]c3ccccc3s2)c1 mol14494 2_1