You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the SMILES representation for 2-[4-[4-(4-methylphenyl)sulfonylbutyl]phenyl]acetic acid ?
user
CC1=CC=C(S(=O)(=O)CCCCC2=CC=C(CC(=O)O)C=C2)C=C1
assistant