Description

2-Amino-5-(p-Nitrobenzamido)Benzenesulphonic Acid is a specialized organic intermediate of significant importance in the synthesis of complex chemical entities. Its value lies in its bifunctional molecular structure, which incorporates both a reactive amino group and a sulphonic acid moiety, making it a versatile building block for further chemical transformations. This compound is primarily sought after by manufacturers in the pharmaceutical and advanced dye industries for the development of active pharmaceutical ingredients (APIs) and high-performance colorants.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring sulfonamide or aniline-based structures.
• Dye and Pigment Manufacturing: Serves as a crucial intermediate for producing azo dyes and other high-value, color-fast pigments used in textiles, inks, and coatings.
• Chemical Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic pathways and developing novel organic compounds.
• Specialty Chemical Synthesis: Employed as a building block for creating surfactants, corrosion inhibitors, and other functional chemicals that benefit from its aromatic and ionic properties.

Basic Information

Product Name	2-Amino-5-(p-Nitrobenzamido)Benzenesulphonic Acid
CAS No.	6470-53-7
Molecular Formula	C₁₃H₁₁N₃O₆S
Molecular Weight	337.31 g/mol
Synonyms	2-Amino-5-(4-nitrobenzamido)benzenesulfonic acid; 4-Nitro-N-(2-amino-5-sulfophenyl)benzamide; Benzenesulfonic acid, 2-amino-5-[(4-nitrobenzoyl)amino]-; 5-Amino-2-(4-nitrobenzamido)benzenesulfonic acid; p-Nitrobenzoic acid (2-amino-5-sulfanilide); 6470-53-7; ANSA intermediate
EINECS	Contact for details

Quality Control

Our 2-Amino-5-(p-Nitrobenzamido)Benzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your project requirements.

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 use to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder or crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
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.