InChI=1/C17H14O7/c1-22-16-13(20)12-10(19)7-11(8-3-5-9(18)6-4-8)24-15(12)17(23-2)14(16)21/h3-7,18,20-21H,1-2H3 DFBBA35A28EE5BDC