You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 6-chloro-9-cyclohexylidene-1,3,5,8-tetrazatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10,12,14(17)-hexaene by IUPAC nomenclature, provide its molecular formula.
user
C19H19ClN4
assistant