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17852-52-7

4-Sulfonamidophenylhydrazine hydrochloride 4-Sulfonamidophenylhydrazine hydrochloride is used in pharmaceutical intermediate and other. It’s mainly used for producing Celecoxib.The process and raw materials as follows:After sulfanilamide diazotized with hydrochloric acid and sodium nitrite,again under the reduction of sodium bisulfite, after acidification,filtration,cooling,crystallization,centrifugation, drying, then package and storage. Synonyms: Hydrazinobenzene-1-sulfonamide hydrochloride 4-Hydrazinobenzene-1-sulfonamide hydrochloride; 4-Aminosulfonylphenylhydrazine hydrochloride Molecular Formula: C6H10ClN3O2S CAS NO:17852-52-7 Molecular weight:223.68 Appearance:white powder Melting Point:217-219℃ Purity(%): ≥97 Sulfanilamide: ≤1.0 Single impurity(%)≤0.2: Total impurity content(%):≤1.5 Sulphate ash: ≤2.0

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