You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2E,3Z)-5-(difluoromethyl)-3-ethylidene-1-methyl-2-prop-2-enylidenepyrrolidine;ethane;2-(4-methylpiperazin-1-yl)acetaldehyde by IUPAC nomenclature, provide its molecular formula.
user
C20H35F2N3O
assistant