You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-N,4-dimethyl-6-(3,3,13-trimethyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)hex-3-en-2-imine is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H47N
assistant