You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl-[2-[6-[(2-methylpropan-2-yl)oxycarbonyl]pyridazin-3-yl]acetyl]amino]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H32N4O7
assistant