Description

3-Amino-4-[(p-Tolyl)Sulphonyl]Benzenesulphonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical intermediate in advanced organic synthesis. Its molecular structure, featuring both amino and sulfonyl/sulfonic acid groups, makes it a versatile building block for creating complex molecules with specific functional properties. This compound is essential for manufacturers and R&D laboratories in the fine chemical, pharmaceutical, and dyestuff industries seeking to develop or produce high-value, performance-driven end products.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs requiring specific sulfonamide or aniline-based pharmacophores.
• Dye and Pigment Manufacturing: Used in the production of high-performance azo dyes and organic pigments, where it contributes to color fastness and molecular stability.
• Agrochemical Synthesis: Serves as a building block for developing advanced herbicides, fungicides, and plant growth regulators.
• Functional Material Research: Employed in R&D for creating novel polymers, liquid crystals, and electronic materials that benefit from its sulfonic acid functionality.
• Chemical Research & Development: A valuable reagent for academic and industrial research in organic chemistry, catalysis, and material science.

Basic Information

Product Name	3-Amino-4-[(p-Tolyl)Sulphonyl]Benzenesulphonic Acid
CAS No.	68227-75-8
Molecular Formula	C13H13NO5S2
Molecular Weight	327.37 g/mol
Synonyms	3-Amino-4-(4-methylphenylsulfonyl)benzenesulfonic acid; 4-Amino-3-[(4-methylphenyl)sulfonyl]benzenesulfonic acid; Benzenesulfonic acid, 3-amino-4-[(4-methylphenyl)sulfonyl]-; 3-Amino-4-(p-tolylsulfonyl)benzenesulfonic acid; 4-(4-Methylphenylsulfonyl)-3-aminobenzenesulfonic acid; 3-Amino-4-(4-tolylsulfonyl)benzenesulfonic acid; 68227-75-8
EINECS	Contact for details

Quality Control

Our production of 3-Amino-4-[(p-Tolyl)Sulphonyl]Benzenesulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed against comprehensive specifications using advanced techniques like HPLC, NMR, and titration. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment, supporting 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 room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Off-white to light yellow 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

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