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
|
|
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... |
|
|
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,... |
|
|
4-Acetoxystyrene |
4-Acetoxystyrene
4-Acetoxystyrene monomer is mainly used in the synthesis of polyhydroxystyrene. Polyhydroxystyrene is the main component fo phot... |
|
|
93-11-8 |
2-Naphthalenesulfonyl chloride
Synonyms:2-Naphthylsulfonyl chloride,beta-Naphthalenesulfochloride
Appearance:white powder
CAS NO:93-11-8
Molecu... |
|
|
670-96-2 |
2-Phenyl imidazole
Molecular Formula：C9H8N2
CAS：670-96-2
Quality Index：
1.Appearance: White crystal
2.Content: ≥99.0%
3.Loss on drying: ≤0.5%... |
All supplier products
Same products
