You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S)-2-[(3aR,6S,6aR)-6-bromo-4,5,6,6a-tetrahydro-3aH-cyclopenta[d][1,3]thiazol-2-yl]-5-methyl-4-phenyldiazenyl-4H-pyrazol-3-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H16BrN5OS
assistant