Celecoxib iMpurity-G

Base Information

• Chemical Name: Celecoxib iMpurity-G
• CAS No.: 1061214-06-9
• Molecular Formula: C₁₅H₁₇N₃O₂S
• Molecular Weight: 303.385
• Hs Code.: 2935904000
• Mol file: 1061214-06-9.mol

Synonyms:4-[2-[1-(4-methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide

Chemical Property of Celecoxib iMpurity-G

Chemical Property:

• Melting Point: 224-226 °C(Solv: ethanol (64-17-5))
• Boiling Point: 484.9±55.0 °C(Predicted)
• PKA: 10.53±0.12(Predicted)
• Density: 1.25±0.1 g/cm3(Predicted)
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

NLT 98% ^*data from raw suppliers

4-[2-[1-(4-Methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Uses: 4-[2-[1-(4-Methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide is an impurity of Celecoxib (C251000), a selective cyclooxygenase-2 (COX-2) inhibitor. Anti-inflammatory. Used in treatment of familial adenomatous polyposis. Celecoxib is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing hormones that cause inflammation and pain in the body.

Technology Process of Celecoxib iMpurity-G

There total 2 articles about Celecoxib iMpurity-G which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 79.0%

4-hydrazinobenzene-1-sulfonamide hydrochloride (17852-52-7,27918-19-0) + para-methylacetophenone (122-00-9) → 4-[2-[1-(4-methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide (1061214-06-9)

Guidance literature:

With sodium acetate; In methanol; water; for 1h; Reflux;

DOI:10.1002/adsc.201501130

Reference yield:

para-methylacetophenone (122-00-9) + 4-aminosulfonylphenylhydrazine (4392-54-5) → 4-[2-[1-(4-methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide (1061214-06-9)

Guidance literature:

With acetic acid; In ethanol; water; for 0.5h; Reflux;

DOI:10.1016/j.bmc.2016.04.061

Reference yield: 98.0%

4-[2-[1-(4-methylphenyl)ethylidene]hydrazinyl]benzenesulfonamide (1061214-06-9) + N,N-dimethyl-formamide dimethyl acetal (4637-24-5) → N-[(dimethylamino)methylidene]-4-{2-[1-(4-methylphenyl)ethylidene]hydrazino}benzenesulfonamide (1448798-93-3)

Guidance literature:

In neat (no solvent); at 20 ℃; for 0.25h; under 760.051 Torr; chemoselective reaction; Green chemistry;

DOI:10.1039/c3gc40797g

upstream raw materials:

4-hydrazinobenzene-1-sulfonamide hydrochloride

para-methylacetophenone

4-aminosulfonylphenylhydrazine

Downstream raw materials:

4-(4-formyl-3-(p-tolyl)-1Hpyrazol-1-yl)benzenesulfonamide

1-[4-(aminosulfonyl)phenyl]-3-(4-methylphenyl)-1H-pyrazole-4-carboxylic acid

4-(4-cyano-3-(p-tolyl)-1H-pyrazol-1-yl)benzenesulfonamide

1-[4-(aminosulfonyl)phenyl]-3-(4-methylphenyl)-1H-pyrazole-4-carbothioamide