Nc1ccc2[nH]c(=O)[nH]c2c1 mol14036 0_1 [NH3+]c1ccc2[nH]c(=O)[nH]c2c1 mol14036 1_1 Nc1ccc2[nH]c(=O)[n-]c2c1 mol14036 -1_1 Nc1ccc2[n-]c(=O)[nH]c2c1 mol14036 -1_2