3-methoxy-1-(toluene-4-sulfonyloxy)-xanthen-9-one

2-{[(4-甲基苯基)磺酰基]氨基}苯甲酸

1-hydroxy-3-methoxyxanthen-9-one

toluene-4-sulfonic acid-[2-(2,4-dimethoxy-benzoyl)-anilide]

3-氯-4-甲基苯酚