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15721-02-5Nc1cc(Cl)c(-c2cc(Cl)c(N)cc2Cl)cc1ClUXOXUHMFQZEAFR-UHFFFAOYSA-N15721-02-5DTXSID7021314CHEMBL3186078CHEBI:82540用途有機合成原料。
2,2' ,5,5' -Tetrachlorobenzidine is made by the reduction of 2,5-dichloronitrobenzene with zinc dust and sodium hydroxide solution. The subsequent rearrangement is carried out using sulfuric acid or hydrochloric acid. The dihydrochloride melts at 230 ℃. Tetrachlorobenzidine is marketed as the free base and is used to produce yellow pigments.
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