You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,3-benzodioxol-5-ylmethyl)-2-[1-(3-methoxyphenyl)tetrazol-5-yl]sulfanylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H17N5O4S
assistant