Thieno[2,3-b]thiophene-2-carboxylic acid, 3,4-diamino-5-cyano-, ethyl ester (en)

4-methyl-N-(sulfanylidenemethylidene)benzenesulfonamide

1,4-二甲基蒽醌

3,3-bis-(2,5-dimethyl-phenyl)-phthalide

ethyl 4-[(4-ethoxycarbonylphenyl)carbamothioylamino]benzoate