2-methoxy-3,7,8,10-tetramethyl-5,10-dihydrobenzo[g]pteridin-4(3H)-one InChI=1/C15H18N4O2/c1-8-6-10-11(7-9(8)2)18(3)13-12(16-10)14(20)19(4)15(17-13)21-5/h6-7,16H,1-5H benzo[g]pteridin-4(3H)-one, 5,10-dihydro-2-methoxy-3,7,8,10-tetramethyl-