2(1H)-quinolinone, 4-hydroxy-1-methyl-3-(3-methyl-2-butenyl)- 4-hydroxy-1-methyl-3-(3-methylbut-2-en-1-yl)quinolin-2(1H)-one InChI=1/C15H17NO2/c1-10(2)8-9-12-14(17)11-6-4-5-7-13(11)16(3)15(12)18/h4-8,17H,9H2,1-3H