You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule methyl-[(5-methylfuran-2-yl)methyl]-[2-oxo-2-[4-(thiophene-2-carbonyl)piperazin-1-yl]ethyl]azanium ?
user
C18H24N3O3S+
assistant