Nc1ccc2cc3c(ccc4ccccc43)nc2c1 mol5149 0_1 [NH3+]c1ccc2cc3c(ccc4ccccc43)nc2c1 mol5149 1_1 Nc1ccc2cc3c(ccc4ccccc43)[nH+]c2c1 mol5149 1_2