6-Bromoquinazolin-4-ol32084-59-633 % similar 6-Chloro-4,5-pyrimidinediamine4316-98-733 % similar 5-Fluoroquinazolin-4-ol436-72-633 % similar 6,7-Dimethoxy-3H-quinazolin-4-one13794-72-433 % similar 5-Methylpyrimidin-4-ol17758-52-032 % similar 4-Chloropyridine-2,3-diamine24484-98-832 % similar 4-Methylpyridine-2,3-diamine53929-59-232 % similar 7-Bromo-6-chloro-4-quinazolinone17518-98-831 % similar 4-Hydroxy-6-hydrazinylpyrimidine29939-37-531 % similar Adenine hydrochloride hemihydrate6055-72-730 % similar