CCC1=CC2=C(O1)C=C(C=C2)C(=O)C3=CC=C(C=C3)OC
InChI=1S/C18H16O3/c1-3-15-10-13-4-5-14(11-17(13)21-15)18(19)12-6-8-16(20-2)9-7-12/h4-11H,3H2,1-2H3
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