Description

2,5-Dichloro-4-Hydrazinobenzenesulfonic Acid is a specialized aromatic sulfonic acid derivative featuring both hydrazine and chloro substituents. This compound serves as a versatile and critical chemical intermediate in the synthesis of more complex molecules, particularly in the production of dyes, pigments, and active pharmaceutical ingredients (APIs). It is essential for manufacturers in the fine chemical, pharmaceutical, and agrochemical industries who require high-purity building blocks for advanced synthesis.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes and other complex colorants, contributing to color fastness and specific hue properties.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of various active pharmaceutical ingredients (APIs), where the hydrazino and sulfonic acid groups enable specific molecular transformations.
• Agrochemical Production: Employed in the synthesis of certain herbicides and fungicides, leveraging its reactive sites to create targeted bioactive molecules.
• Chemical Research & Development: Serves as a valuable reagent in organic synthesis for academic and industrial R&D labs exploring new chemical entities and reaction pathways.
• Photographic Chemical: Can be utilized in the formulation of certain photographic developers and other imaging chemicals.
• Corrosion Inhibitor Formulation: Potential use as a component in specialized industrial corrosion inhibitor blends.

Basic Information

Product Name	2,5-Dichloro-4-Hydrazinobenzenesulfonic Acid
CAS No.	118-89-8
Molecular Formula	C6H6Cl2N2O3S
Molecular Weight	257.09 g/mol
Synonyms	4-Hydrazino-2,5-dichlorobenzenesulfonic Acid; 2,5-Dichlorosulfanilic Acid Hydrazide; Benzenesulfonic acid, 2,5-dichloro-4-hydrazino-; 2,5-Dichloro-4-hydrozinobenzenesulfonic Acid; p-Hydrazino-2,5-dichlorobenzenesulfonic Acid; 2,5-Dichloro-4-sulfanilylhydrazine; 118-89-8; DCBSA
EINECS	204-281-6

Quality Control

Our 2,5-Dichloro-4-Hydrazinobenzenesulfonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing results from HPLC, titration, and other relevant analytical methods. Our quality commitment ensures reliable performance and consistency for your critical synthesis processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; it is recommended to store under an inert atmosphere such as nitrogen for long-term preservation and to minimize degradation. Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%
Solubility	Soluble in alkaline aqueous solutions; slightly soluble in water

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