Description

6-Chloro-2-Aminophenol-4-Sulfonic Acid is a versatile sulfonated aminophenol derivative that serves as a critical intermediate in the synthesis of complex organic molecules. Its unique structure, featuring both a sulfonic acid group and a chloro-aminophenol backbone, makes it an essential building block for creating high-value, functional compounds. This product is primarily sought after by manufacturers in the dye, pigment, and pharmaceutical industries for its role in producing colorants and active pharmaceutical ingredients (APIs).

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and solubility.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of certain APIs and pharmaceutical intermediates, leveraging its functional groups for further chemical modifications.
• Chemical Research & Development: Employed in organic synthesis laboratories for developing novel compounds and conducting structure-activity relationship (SAR) studies.
• Specialty Chemical Production: Acts as an intermediate for producing corrosion inhibitors, complexing agents, and other performance chemicals.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic developers and sensitizers.

Basic Information

Product Name	6-Chloro-2-Aminophenol-4-Sulfonic Acid
CAS No.	5857-94-3
Molecular Formula	C₆H₆ClNO₄S
Molecular Weight	223.64 g/mol
Synonyms	2-Amino-6-chlorophenol-4-sulfonic acid; 4-Amino-2-chlorophenol-6-sulfonic acid; 6-Chloro-2-aminophenol-p-sulfonic acid; 2-Amino-6-chloro-4-hydroxybenzenesulfonic acid; 4-Hydroxy-3-amino-5-chlorobenzenesulfonic acid; CAPS Acid; 6-Chloro-2-aminophenol-4-Sulfonate
EINECS	227-485-6

Quality Control

Our production of 6-Chloro-2-Aminophenol-4-Sulfonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials. Due to its strong acid/organic solvent nature, keep away from strong bases, oxidizing agents, and heat sources. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Light brown to grayish powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 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.