You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[1-(4-hydroxyphenyl)tetrazol-5-yl]sulfanylpropanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H17N5O4S
assistant