(3Z)-5-Benzyl-3-benzylidene-1-hydroxypyrazine-2,6(1H,3H)-dione 2,6(1H,3H)-pyrazinedione, 1-hydroxy-5-(phenylmethyl)-3-(phenylmethylene)-, (3Z)- 5-Benzyl-3-benzylidene-1-hydroxy-3H-pyrazine-2,6-dione InChI=1/C18H14N2O3/c21-17-15(11-13-7-3-1-4-8-13)19-16(18(22)20(17)23)12-14-9-5-2-6-10-14/h1-11,23H,12H2/b15-11 Sclerominol