1-(2',4'-Dimethoxybenzyl)-2-methyl-3-(4'-chlorophenyl)-4(3H)-quinazolinium perchlorate 139755-24-1 Quinazolinium, 3,4-dihydro-3-(4-chlorophenyl)-1-((2,4-dimethoxyphenyl)methyl)-2-methyl-4-oxo-,perchlorate