4-[6-(2,4-dichlorophenyl)hexylsulfanyl]-3-hydroxybutanoic acid 4-[6-(2,4-dichlorophenyl)hexylsulfanyl]-3-hydroxy-butanoic acid 4-[6-(2,4-dichlorophenyl)hexylthio]-3-hydroxybutanoic acid 4-[6-(2,4-dichlorophenyl)hexylthio]-3-hydroxy-butyric acid