2,3-Dihydro-3-(4-methoxyphenyl)-2-thioxo-4(1H)-quinazolinone compd. with piperazine (2:1) 4(1H)-Quinazolinone, 2,3-dihydro-3-(4-methoxyphenyl)-2-thioxo-, compd. with piperazine (2:1) 75129-78-1