(环戊硫基)乙酸

5',8'-dimethylspiro[cyclopentane-1,1'-isothiochroman]-4'-one

[[1-(2',5'-dimethylphenyl)cyclopentyl]thio]acetic acid

4-甲基-2-硝基苯甲酸

6-甲基-1-茚酮