You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-(7-bicyclo[4.2.0]octa-1,3,5-trienylmethyl)-7-methyl-3-thia-1-azaspiro[4.5]decan-2-imine ?
user
C18H24N2S
assistant