Description

2-Amino-4-Chlorophenol-6-Sulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a critical intermediate in the synthesis of complex organic molecules. Its value lies in its bifunctional nature, containing both an amino and a sulfonic acid group, which makes it a key building block for creating dyes, pigments, and other specialty chemicals. This compound is essential for manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries seeking to produce high-performance colorants and active ingredients with specific properties.

Application

• Dye and Pigment Intermediate: Primarily used as a key precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and brightness.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs), particularly in compounds requiring a sulfonated aromatic core.
• Agrochemical Manufacturing: Utilized in the production of certain herbicides and pesticides where its structural features impart specific biological activity.
• Chemical Research & Development: Employed in organic synthesis laboratories for developing novel compounds and conducting structure-activity relationship (SAR) studies.
• Photographic Chemicals: Can be used in the formulation of certain photographic developers and other light-sensitive materials.
• Corrosion Inhibitor Formulation: Its molecular structure finds application in creating specialty additives for metal treatment and protection.

Basic Information

Product Name	2-Amino-4-Chlorophenol-6-Sulfonic Acid
CAS No.	88-23-3
Molecular Formula	C6H6ClNO4S
Molecular Weight	223.64 g/mol
Synonyms	4-Chloro-2-aminophenol-6-sulfonic acid; 2-Amino-4-chlorobenzenesulfonic acid, 6-hydroxy-; 6-Hydroxy-3-chloroaniline-4-sulfonic acid; 4-Chloro-6-hydroxy-2-aminobenzenesulfonic acid; 2-Amino-4-chloro-1-hydroxybenzene-6-sulfonic acid; 3-Amino-5-chlorophenol-4-sulfonic acid; Azoic Coupling Component 13; CL 37520
EINECS	201-811-7

Quality Control

Our 2-Amino-4-Chlorophenol-6-Sulfonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) upon request, detailing results from HPLC, titration, and other relevant analytical methods to guarantee batch-to-batch consistency and compliance with your technical 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). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

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%
Sulfated Ash	≤ 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.