Description

3-Amino-2-Chlorobenzenesulphonic Acid is a key aromatic sulfonic acid derivative that serves as a versatile intermediate in advanced organic synthesis. Its value lies in the strategic positioning of its amino, chloro, and sulfonic acid functional groups, enabling precise chemical modifications. This compound is essential for manufacturers in the pharmaceutical and specialty chemical industries seeking to develop active ingredients and high-performance dyes.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfa drugs and other therapeutic agents.
• Dye and Pigment Manufacturing: Used in the production of azo dyes and other complex colorants, where it contributes to color fastness and specific hue properties.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of certain herbicides and pesticides, leveraging its reactive sites for molecular tailoring.
• Chemical Research & Development: Employed in laboratories for method development and the creation of novel chemical entities for material science applications.
• Specialty Surfactant Production: Acts as a starting material for synthesizing specialized surfactants with unique solubility or surface-active properties.

Basic Information

Product Name	3-Amino-2-Chlorobenzenesulphonic Acid
CAS No.	71501-37-6
Molecular Formula	C6H6ClNO3S
Molecular Weight	207.64 g/mol
Synonyms	2-Chloro-3-aminobenzenesulfonic Acid; 3-Amino-2-chlorobenzenesulfonic Acid; 2-Chloroaniline-3-sulfonic Acid; Benzenesulfonic acid, 3-amino-2-chloro-; 3-Amino-2-chlorophenylsulfonic acid
EINECS	Contact for details

Quality Control

Our 3-Amino-2-Chlorobenzenesulphonic Acid is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent degradation.

Specification

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

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