You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-8-[(2R)-butan-2-yl]-2-(2,2-dimethylpropyl)-13-ethyl-3,7,12,17-tetramethyl-2,3,12,13,22,24-hexahydroporphyrin The above is the IUPAC name of a molecule. Write its molecular formula.
user
C35H48N4
assistant