Description

3-Chloro-4-Hydrazinobenzenesulphonic Acid is a specialized aromatic sulfonic acid derivative featuring both chloro and hydrazino functional groups, making it a versatile intermediate for advanced chemical synthesis. This compound is valued for its role in creating complex molecules, particularly in the pharmaceutical and agrochemical sectors, where precise functionalization is critical. It serves as a key building block for researchers and manufacturers developing active pharmaceutical ingredients (APIs), dyes, and performance chemicals.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated aromatic backbone.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and other crop protection agents where the chlorohydrazino moiety introduces specific biological activity.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing azo dyes and other complex colorants, leveraging the hydrazino group for diazotization and coupling reactions.
• Chemical Research & Development: Employed in organic synthesis labs as a building block for novel compounds in material science and medicinal chemistry projects.
• Complexing Agent Precursor: Can be utilized to synthesize ligands and chelating agents for metal ion sequestration in industrial processes.

Basic Information

Product Name	3-Chloro-4-Hydrazinobenzenesulphonic Acid
CAS No.	6628-76-8
Molecular Formula	C6H7ClN2O3S
Molecular Weight	222.65 g/mol
Synonyms	4-Hydrazino-3-chlorobenzenesulfonic Acid; 3-Chloro-4-hydrazinylbenzenesulfonic Acid; Benzenesulfonic acid, 3-chloro-4-hydrazino-; 3-Chloro-4-hydrazinophenylsulfonic Acid; 3-Chloro-4-hydrozinobenzenesulfonic Acid; 3-Chloro-4-sulfophenylhydrazine; 3-Chloro-4-aminobenzenesulfonic acid hydrazide (related); p-Hydrazinobenzenesulfonic acid, 3-chloro derivative
EINECS	Contact for details

Quality Control

Our 3-Chloro-4-Hydrazinobenzenesulphonic Acid is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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