2,4(1H,3H)-pyrimidinedione, 6-amino-5-[(phenylmethylene)amino]-3-(2-propynyl)- 6-amino-5-(benzylideneamino)-3-prop-2-yn-1-ylpyrimidine-2,4(1H,3H)-dione InChI=1/C14H12N4O2/c1-2-8-18-13(19)11(12(15)17-14(18)20)16-9-10-6-4-3-5-7-10/h1,3-7,9H,8,15H2,(H,17,20)/b16-9