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-ethyl-2-[[2-[5-[hydroxy(oxido)amino]thiophen-3-yl]imidazol-1-yl]methyl]benzimidazole-5-carbonitrile ?
user
C18H15N6O2S-
assistant