2-(2,6-dimethylphenyl)-6,7-dimethoxy-4H-1,3-benzothiazine

3-(3,4-dimethoxyphenyl)sulfanylpropanoic acid

N-[(3,4-dimethoxyphenyl)sulfanylmethyl]-3,4-dimethoxybenzamide

2,3,7,8-tetramethoxythianthrene