3-(2,2-diphenyl-2H-chromen-6-yl)-3-phenyl-3H-benzo[f]chromene 3H-naphtho[2,1-b]pyran, 3-(2,2-diphenyl-2H-1-benzopyran-6-yl)-3-phenyl- InChI=1/C40H28O2/c1-4-13-31(14-5-1)39(32-15-6-2-7-16-32)26-24-30-28-34(21-23-37(30)41-39)40(33-17-8-3-9-18-33)27-25-36-35-19-11-10-12-29(35)20-22-38(36)42-40/h1-28