Description

Benzenesulfonic Acid, 4-Hydrazino-, Monohydrate (9Ci) is a specialized aromatic sulfonic acid derivative featuring a reactive hydrazino functional group, making it a valuable intermediate in advanced organic synthesis. Its unique structure is critical for constructing complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and high-performance dyes. This compound is essential for R&D chemists and production specialists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfonic acid and hydrazine motifs into target molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of sulfonamide-based drugs, including diuretics and carbonic anhydrase inhibitors.
• Agrochemical Synthesis: Used in the production of herbicides and fungicides that require benzenesulfonic acid scaffolds.
• Dye and Pigment Manufacturing: Serves as a precursor for azo dyes and other colorants, leveraging the hydrazino group for diazotization and coupling reactions.
• Chemical Research & Development: A versatile reagent for constructing heterocyclic compounds and for use in coupling reactions and polymer chemistry.
• Corrosion Inhibitor Formulation: Potential component in specialty formulations for metal surface treatment and protection.

Basic Information

Product Name	Benzenesulfonic Acid, 4-Hydrazino-, Monohydrate (9Ci)
CAS No.	467450-48-2
Molecular Formula	C6H10N2O4S
Molecular Weight	206.22 g/mol
Synonyms	4-Hydrazinobenzenesulfonic Acid Monohydrate; p-Hydrazinobenzenesulfonic Acid Hydrate; Benzenesulfonic acid, 4-hydrazinyl-, hydrate (1:1); 4-Hydrazinylbenzenesulfonic acid hydrate; 4-Sulfophenylhydrazine Monohydrate
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 4-Hydrazino-, Monohydrate (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and water content. Our quality commitment supports compliance with cGMP and ICH guidelines for pharmaceutical intermediates, ensuring reliable performance in your critical synthesis processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers must be kept tightly sealed after opening and consideration should be given to storage under an inert atmosphere for long-term preservation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	7.0 - 9.0 %
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.