2-Amino-5-chloropyridine1072-98-630 % similar 2-Hydroxy-5-iodopyridine13472-79-230 % similar 1,4-Diiodo-2-fluorobenzene147808-02-430 % similar 2,5-Diaminopyridine4318-76-730 % similar 2,4-Diiodobenzenamine533-70-030 % similar