You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
butane;ethane;methanethiol;3,7,10,13-tetramethyl-17-(5-methylhex-5-en-2-yl)-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene is the IUPAC name of a molecule. Please give its molecular formula.
user
C37H74S
assistant