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-[(4S)-4-(5-fluoro-1-benzothiophen-2-yl)-2-methylpiperidin-1-yl]-3-[(2-methyl-1H-indol-4-yl)oxy]propan-2-ol;oxalic acid ?
user
C28H31FN2O6S
assistant