15725-17-4 2,4-pentanedione, 3-[(4-methoxyphenyl)methylene]- 3-(4-methoxybenzylidene)pentane-2,4-dione InChI=1/C13H14O3/c1-9(14)13(10(2)15)8-11-4-6-12(16-3)7-5-11/h4-8H,1-3H