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2051-65-2O=S(=O)(O)c1cc(Cl)ccc1OASFYHTGWWLFSDZ-UHFFFAOYSA-N2051-65-2DTXSID10333694개요5-Chloro-2-hydroxybenzenesulfonic Acid is obtained from 2,5-dichlorobenzenesulfonic acid by partial hydrolysis with sodium hydroxide solution in water at 170 – 190 ℃ and precipitation with concentrated hydrochloric acid. Used to prepare 5- chloro-2-hydroxy-3-nitrobenzenesulfonic acid, whichisthen reducedto 3-amino-5-chloro-2-hydroxybenzenesulfonic acid.
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