2-(2-Ethoxyphenyl)-5H-benzo(g)-1,3,4-thiadiazolo(2,3-b)quinazolin-5-one 5H-Benzo(g)-1,3,4-thiadiazolo(2,3-b)quinazolin-5-one, 2-(2-ethoxyphenyl)- 82828-65-7