Description

5-Amino-2-Phenoxybenzenesulfonic Acid is a key sulfonated aromatic amine intermediate with significant utility in advanced chemical synthesis. Its molecular structure, featuring both an amino and a sulfonic acid group, makes it a versatile building block for creating complex, functional molecules. This compound is essential for manufacturers in the dye, pigment, and pharmaceutical industries seeking to develop products with specific colorant properties or biological activity.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and solubility.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs), particularly in molecules requiring sulfonamide or aniline functionalities.
• Chemical Research & Development: Used in organic synthesis for creating novel compounds in agrochemical and material science research.
• Functional Material Production: Employed in the manufacture of optical brighteners, liquid crystal materials, and other specialty chemicals.
• Corrosion Inhibitor Formulation: Acts as a component in formulations designed to protect metals in industrial processes.

Basic Information

Product Name	5-Amino-2-Phenoxybenzenesulfonic Acid
CAS No.	6375-07-1
Molecular Formula	C12H11NO4S
Molecular Weight	265.29 g/mol
Synonyms	2-Phenoxy-5-aminobenzenesulfonic Acid; 5-Amino-2-phenoxybenzenesulfonic Acid; Benzenesulfonic acid, 5-amino-2-phenoxy-; 4-Amino-4'-hydroxydiphenyl ether-3-sulfonic acid; 3-Sulfo-4-phenoxyaniline; 4-Phenoxy-3-sulfoaniline; 5-Amino-2-phenoxybenzene-1-sulfonic acid
EINECS	228-923-5

Quality Control

Our 5-Amino-2-Phenoxybenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, 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 every shipment to guarantee traceability and product integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

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

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