You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-(2-chlorocyclohexen-1-yl)-2-methyl-5-methylsulfanyl-1,2,3,3a,4,5,6,7-octahydropyrazolo[1,5-a]pyrimidine-6-carbonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H23ClN4S
assistant