(4-氯苯基硫酚)乙酸

Methyl [(4-chlorophenyl)sulfonyl]acetate

(4-氯苯磺酰基)乙酸

4-甲基-(苯基磺酰基)乙酸乙酯

1-methyl-4-[2-(4-methylphenyl)sulfanylethenylsulfanyl]benzene