2,4-二硝基间苯二酚

(4,6-dibenzoyloxy-5-oxo-2H-pyran-2-yl)methyl benzoate

2,3-二溴-1-丁烯

2-(Carboxymethyl)-4,5-dimethoxybenzoic acid

2-(carboxymethoxy)-4-methoxybenzoic acid