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 1-(2,6-dichlorocyclohexa-1,5-dien-1-yl)-3-[5-(4-ethylpiperazin-1-yl)-1,3,4-thiadiazol-2-yl]urea ?
user
C15H20Cl2N6OS
assistant