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
Other supplier products
|
|
dry strength agent for paper |
Dry strength agent is in the original dry strength agent, based on imported raw materials, research and production of new paper dry strength agent,... |
|
|
93-11-8 |
2-Naphthalenesulfonyl chloride
Synonyms:2-Naphthylsulfonyl chloride,beta-Naphthalenesulfochloride
Appearance:white powder
CAS NO:93-11-8
Molecu... |
|
|
Cationic Rosin Sizing Agent |
Cationic Rosin Sizing Agent
Cationic rosin Sizing, due to its own positive charge, can combine with negative charge of pulp fibers to achieve se... |
|
|
616-79-5 |
2-Amino-5-nitrobenzoic acid
Molecular Formula: C7H6N2O4
CAS：616-79-5
Quality Index：
1.Appearance: Yellowish crystal
2.Conten... |
|
|
100-10-7 |
4-Dimethylamino benzaldehyde
Molecular Formula：C9H11NO
CAS：100-10-7
Quality Index：
1.Appearance: White to Yellowish flake-shaped crystal
2.Con... |
供应产品
Same products
