You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance ethyl 2-[[2-[(6-methyl-1H-benzimidazol-2-yl)sulfanyl]acetyl]amino]-5-phenylthiophene-3-carboxylate .
user
C23H21N3O3S2
assistant