InChI=1/C23H18O/c24-20-11-10-18-14-23(15-19(18)12-20)21-9-5-4-8-17(21)13-22(23)16-6-2-1-3-7-16/h1-13,24H,14-15H2/t23-/m1/s1 F057AE1DCCF14314