InChI=1S/C42H28O2/c1-5-17-29(18-6-1)37-33-25-13-14-26-34(33)38(30-19-7-2-8-20-30)40-39(37)41(31-21-9-3-10-22-31)35-27-15-16-28-36(35)42(40,44-43-41)32-23-11-4-12-24-32/h1-28H