1-Methyl-3-alpha-naphthyl-dihydrouracil 101394-27-8 2,4(1H,3H)-Pyrimidinedione, dihydro-1-methyl-3-(1-naphthalenyl)- Dihydro-1-methyl-3-(1-naphthalenyl)-2,4(1H,3H)-pyrimidinedione