(4-OXO-4H-PYRIDIN-1-YL)ACETIC ACID

4-OXO-4-(4-TOLUIDINO)BUT-2-ENOIC ACID

4-(TRIFLUOROMETHYL)DIPHENYL ETHER

4-PHENYL-1,2,3-THIADIAZOLE-5-CARBOXYLIC ACID

4-PHENYL-1,2,4-TRIAZOLINE-3,5-DIONE