Description

2-Amino-5-(4-Aminobenzamido)Benzenesulfonic Acid is a high-purity, multi-functional aromatic sulfonic acid derivative, serving as a critical advanced intermediate in the synthesis of complex organic molecules. Its dual amino functionality and sulfonic acid group make it a versatile building block for creating compounds with specific solubility, chelating, and binding properties. This product is essential for research and production in the pharmaceutical, specialty dye, and advanced material science industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting specific receptors or requiring sulfonamide-based structures.
• Specialty Dye & Pigment Synthesis: Used in the manufacture of high-performance, water-soluble azo dyes and pigments, contributing to color fastness and specific hue properties.
• Ligand & Chelating Agent Production: Serves as a foundational component for creating specialized ligands used in catalysis, metal ion sequestration, and analytical chemistry.
• Polymer & Material Science: Incorporated into the synthesis of functional polymers, such as polyamides or polyimides, to impart sulfonic acid groups for ion-exchange or proton-conduction properties.
• Bioconjugation & Linker Chemistry: Utilized in the development of chemical linkers and probes for bioconjugation applications in diagnostics and biochemical research.
• Research & Development: A valuable compound for academic and industrial R&D in organic synthesis and novel compound discovery.

Basic Information

Item	Detail
Product Name	2-Amino-5-(4-Aminobenzamido)Benzenesulfonic Acid
CAS No.	58862-43-4
Molecular Formula	C13H13N3O4S
Molecular Weight	307.33 g/mol
Synonyms	4-Amino-N-(4-amino-3-sulfophenyl)benzamide; 2-Amino-5-(4-aminobenzoylamino)benzenesulfonic acid; Benzenesulfonic acid, 2-amino-5-[(4-aminobenzoyl)amino]-; 4-Amino-3-sulfo-4'-aminobenzanilide; 4,4'-Diamino-3-sulfobenzanilide; 5-Amino-2-(4-aminobenzamido)benzenesulfonic acid; 4-Amino-N-(4-amino-3-sulfophenyl)-benzamide
EINECS	Contact for details

Quality Control

Every batch of 2-Amino-5-(4-Aminobenzamido)Benzenesulfonic Acid is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for sensitive synthesis applications. A detailed Certificate of Analysis (COA) is available for each lot, confirming identity, purity, and impurity profiles.

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 and light-sensitive nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and oxidation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
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%
Single Maximum Unknown Impurity	≤ 0.5%

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