NCCc1nc[nH]c1I mol6636 0_1 NCCc1[nH+]c[nH]c1I mol6636 1_1 [NH3+]CCc1nc[nH]c1I mol6636 1_2 [NH3+]CCc1[nH+]c[nH]c1I mol6636 2_1 NCCc1nc[n-]c1I mol6636 -1_1