Name		CAS NO.
8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dion		853029-57-9
2-(Chloromethyl)-4-methylquinazoline		109113-72-6
3-Methyl-7-(2-butyn-1-yl)-8-bromoxanthine		666816-98-4
1-Bromo-2-butyne		3355-28-0
8-bromo-3-methyl-7H-purine-2,6-dione		93703-24-3