3,5-dibromo-2-hydroxy-4-methylbenzoic acid

3-bromo-2-hydroxy-4-methyl-5-sulfo-benzoic acid

4,5-dihydroxy-1,3-dimethyl-4,5-diphenylimidazolidin-2-one

2-bromo-1,1,3-triethoxypropane

2-溴-7-硝基芴