You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[[4-amino-5-(2,5-dichlorophenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(2,3-dihydro-1,4-benzodioxin-6-yl)acetamide .
user
C18H15Cl2N5O3S
assistant