Description

5-Amino-2-(p-Methoxyanilino)Benzenesulphonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical intermediate in advanced chemical synthesis. Its unique molecular structure, featuring both amino and anilino substituents, makes it a valuable building block for creating complex, high-value compounds. This product is essential for manufacturers in the pharmaceutical and specialty dye industries seeking to develop novel active ingredients and colorants with specific functional properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting specific receptor sites.
• Specialty Dye & Pigment Synthesis: Used in the production of high-performance dyes and organic pigments, contributing to color fastness and stability.
• Liquid Crystal & OLED Material Production: Serves as a building block for advanced electronic display materials due to its conjugated aromatic system.
• Agrochemical Synthesis: Employed in the development of specialized herbicides and plant growth regulators.
• Polymer Additive Precursor: Used to synthesize functional monomers that impart specific properties like UV stabilization or antistatic behavior to polymers.
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry and material science.

Basic Information

Product Name	5-Amino-2-(p-Methoxyanilino)Benzenesulphonic Acid
CAS No.	33836-66-7
Molecular Formula	C13H14N2O4S
Molecular Weight	294.33 g/mol
Synonyms	5-Amino-2-(4-methoxyanilino)benzenesulfonic acid; 2-Amino-5-[(4-methoxyphenyl)amino]benzenesulfonic acid; Benzenesulfonic acid, 5-amino-2-[(4-methoxyphenyl)amino]-; 4-Methoxy-2'-aminodiphenylamine-4'-sulfonic acid; p-Methoxyaniline-2-aminobenzenesulfonic acid; 33836-66-7; 5-Amino-2-(4-methoxyphenylamino)benzenesulphonic acid
EINECS	Contact for details

Quality Control

Our production of 5-Amino-2-(p-Methoxyanilino)Benzenesulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet the exacting standards required for fine chemical intermediates. Certificates of Analysis (COA) detailing all critical parameters are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

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

Specification

Item	Specification
Appearance	Light yellow to brown 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
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in alkaline aqueous solutions

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