Intermediates

4-Hydrazinobenzenesulfonamide

  • CAS No.4392-54-5
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 4-Hydrazinobenzenesulfonamide (CAS 4392-54-5), a key pharmaceutical intermediate for Celecoxib synthesis. Ideal for GMP-compliant API manufacturing.

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Product Technical Details

Product Overview

4-Hydrazinobenzenesulfonamide is a high-value aromatic hydrazine derivative widely employed as a critical building block in the synthesis of selective cyclooxygenase-2 (COX-2) inhibitors. With a CAS number of 4392-54-5 and a molecular formula of C6H9N3O2S, this compound serves as an essential intermediate in the production of Celecoxib, a globally recognized nonsteroidal anti-inflammatory drug (NSAID). Our product is manufactured under stringent quality control protocols to ensure consistent purity and performance in advanced pharmaceutical applications.

Specifications

Molecular FormulaC6H9N3O2S
Molecular Weight187.22 g/mol
Melting Point158–159 °C (lit.)
Boiling Point434.7 ± 47.0 °C at 760 mmHg
Density1.5 ± 0.1 g/cm³
Flash Point216.7 ± 29.3 °C
Assay≥98.0%
AppearanceOff-white to light beige powder

Industrial Applications

This compound is primarily utilized as a specialized intermediate in the multi-step synthesis of Celecoxib (CAS 169590-42-5). Its well-defined reactivity profile enables efficient construction of the pyrazole core structure characteristic of COX-2 selective inhibitors. As a result, it plays a pivotal role in the development of anti-inflammatory therapeutics within regulated pharmaceutical manufacturing environments.

  • Enables robust and scalable synthetic routes for Celecoxib production
  • Compatible with standard organic transformation protocols under GMP conditions
  • Supplied with comprehensive analytical documentation including Certificate of Analysis (COA)

For optimal stability, store in a cool, dry, and well-ventilated area away from incompatible materials. Standard packaging is 25 kg per drum, with custom packaging options available upon request to meet specific logistical or regulatory requirements.