Description： Tetrachlorocatechol is a metabolite of pentachlorophenol. Acute toxicity of tetrachlorocatechol has been investigated in male and female mice.Tetrachlorocatechol was used to investigate the inhibition of various ureases by halogenated benzo- and naphthoquinones, potent inhibitors of pure ureases fromBacillus pasteuriiandCanavalia ensiformis. It may be used to prepare the copper(II) complexes of the potentially tripodalN,N,Oligand 3,3-bis(1-methylimidazol-2-yl)propionate (L1) and its conjugate acid HL1. Application： Tetrachlorocatechol was used to investigate the inhibition of various ureases by halogenated benzo- and naphthoquinones, potent inhibitors of pure ureases from Bacillus pasteurii and Canavalia ensiformis.It may be used to prepare the copper(II) complexes of the potentially tripodal N,N,O ligand 3,3-bis(1-methylimidazol-2-yl)propionate (L1) and its conjugate acid HL1.