Description

2-Amino-4Chlorobenzenesulfonic Acid is a versatile sulfonic acid derivative and a key aromatic intermediate in organic synthesis. Its molecular structure, featuring both an amino and a sulfonic acid group, makes it a critical building block for creating more complex molecules with specific functional properties. This compound is essential for manufacturers in the dye, pigment, and pharmaceutical industries seeking to develop high-performance products.

Application

• Dye and Pigment Intermediate: Serves as a crucial precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and vibrancy.
• Pharmaceutical Synthesis: Used as an intermediate in the production of active pharmaceutical ingredients (APIs) and specialty fine chemicals.
• Chemical Research & Development: Acts as a valuable reagent in academic and industrial R&D for exploring new synthetic pathways and novel compounds.
• Photographic Chemical: Employed in the formulation of certain photographic developers and sensitizers.
• Corrosion Inhibitor Precursor: Can be utilized in the development of specialty chemicals for metal surface treatment and protection.

Basic Information

Product Name	2-Amino-4Chlorobenzenesulfonic Acid
CAS No.	3479-10-5
Molecular Formula	C6H6ClNO3S
Molecular Weight	207.64 g/mol
Synonyms	4-Chloro-2-aminobenzenesulfonic Acid; 4-Chloroanthranilic-3-sulfonic Acid; 2-Amino-4-chlorobenzene-1-sulfonic Acid; 4-Chloro-2-sulfoaniline; Benzenesulfonic acid, 2-amino-4-chloro-; 3-Sulfo-4-chloroaniline; 4-Chloro-2-aminophenylsulfonic Acid
EINECS	222-463-9

Quality Control

Our 2-Amino-4Chlorobenzenesulfonic Acid is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Off-white to light gray crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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