You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S,4S)-4-acetyloxy-1-(9H-fluoren-9-ylmethoxycarbonyl)-3-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetrazacyclododec-1-yl]pyrrolidine-2-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
user
C36H45N5O12
assistant