3-(Benzylideneamino)-2,7,9-trimethylpyrido(3',2':4,5)thieno(3,2-d)pyrimidin-4(3H)-one 3-N-Benzilidenamino-2,7,9-trimetilpirido(3',2':4,5)tieno(3,2-d)pirimidin-4(3H)-one [Italian] 99504-90-2 Pyrido(3',2':4,5)thieno(3,2-d)pyrimidin-4(3H)-one, 3-((phenylmethylene)amino)-2,7,9-trimethyl- Pyrido(3',2':4,5)thieno(3,2-d)pyrimidin-4(3H)-one, 3-(benzylideneamino)-2,7,9-trimethyl-