You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 5,10,15-triethyl-7,13-dimethyl-9,11-dioxa-10lambda5-phosphatetracyclo[10.4.0.03,8.04,16]hexadeca-1(12),3(8),4,6,13,15-hexaene 10-oxide is given. What is its corresponding molecular formula?
user
C21H25O3P
assistant