You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-6-fluoro-7-[4-[[3-(methoxymethyl)phenyl]methyl]piperazin-1-yl]-4-oxoquinoline-3-carboxylic acid;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H29ClFN3O4
assistant