1897-91-2 2-(2-(3-Pyridyl)ethenyl)-3-(2-chlorophenyl)-4(3H)-quinazolinone 2-(beta-Pyridyl-(3'')-aethenyl)-3-(o-chlorphenyl)chinazolinone-(4) [German] 4(3H)-Quinazolinone, 3-(2-chlorophenyl)-2-(2-(3-pyridyl)ethenyl)- 4(3H)-Quinazolinone, 3-(2-chlorophenyl)-2-(2-(3-pyridyl)ethenyl- 4(3H)-Quinazolinone, 3-(o-chlorophenyl)-2-(2-(3-pyridyl)vinyl)- B 231