3-Chloro-4-iodopyridine77332-79-731 % similar Iodopyrazine32111-21-031 % similar 3,5-Dichloro-4-iodopyridine343781-41-931 % similar 2-Iodoaniline615-43-031 % similar 3,5-Dichloro-1,4-dihydropyridazin-4-imine53180-76-030 % similar