You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 18,25-diphenyl-12,31-dioxa-18,25-diphosphahexacyclo[30.8.0.02,11.03,8.019,24.035,40]tetraconta-1(32),2(11),3,5,7,9,19,21,23,33,35,37,39-tridecaene .
user
C48H46O2P2
assistant