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 4-[(E)-(5-bromothiophen-2-yl)methylideneamino]-5-ethyl-1,2,4-triazole-3-thiolate;dimethyltin(2+) ?
user
C20H22Br2N8S4Sn
assistant