水杨酸

5-[(2-氯乙酰基)氨基]-2-羟基-苯甲酸

4-bromo-6-(5-bromo-3H-1,3-benzoxazol-2-ylidene)cyclohexa-2,4-dien-1-one

5-[di(propan-2-yl)amino]-2-hydroxybenzoic acid

4-[di(propan-2-yl)amino]-2-hydroxybenzoic acid