3,6-Dichloro-4-methoxypyridazine70952-62-430 % similar 5-Chloro-7-azaindole866546-07-830 % similar 3-Amino-2-bromo-5-chloropyridine90902-83-330 % similar 3,4,5-Trichloropyridazine14161-11-630 % similar 3-Chloroisoquinoline19493-45-930 % similar 6-Chloropyridine-3,4-diamine89182-17-230 % similar