3,4-二乙酰氧基苯甲酸

3-溴-4,5-二羟基苯甲酸

bis(3,4-dihydroxyphenyl)methanone

(3,4-dihydroxyphenyl)-(2,3,4-trihydroxyphenyl)methanone

4,5-diaminocyclohexa-3,5-diene-1,2-dione