4-Chloro-5-sulfamoylanthranilic acid

4-氯-5-氨磺酰邻氨基苯甲酸

4-Chloro-7-fluoroquinoline

4-Chlorothieno[3,2-d]pyrimidine-6-carboxylic acid

4-cyano-tetrahydropyran-4-carboxylic acid

4-cyclohexyl-3-thiosemicarbazide

4-ethoxy-2-hydroxy-benzaldehyde

4-Fluoro-1,2-benzisoxazol-3-ol

4-Fluoro-α-methylstyrene

4-Formyl-N,N-dimethyl-1H-imidazole-1-sulfonamide

4-Hydroxy-L-isoleucine

4-羟基-L-异亮氨酸

4-hydroxy-6-(trifluoromethoxy)quinoline-3-carboxylic acid

4-Hydroxybutyric acid hydrazide

4-Iodo-3-nitrobenzamide

4-mercaptobutyric acid

4-巯基丁酸

4-Methoxybutanal