Standard InChI: InChI=1S/C25H28O4/c1-15(2)5-7-17-11-19(12-18(25(17)28)8-6-16(3)4)23-14-22(27)21-10-9-20(26)13-24(21)29-23/h5-6,9-13,23,26,28H,7-8,14H2,1-4H3/t23-/m0/s1
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