Description

5-[[4-(Aminosulphonyl)-2-Nitrophenyl]Amino]-2-Anilinobenzenesulphonic Acid is a specialized organic intermediate with a complex aromatic structure, featuring both sulphonic acid and nitro functional groups. This compound is valued for its role in the synthesis of high-performance dyes and pigments, where it contributes to color fastness and specific chromophoric properties. It is primarily utilized by manufacturers in the chemical synthesis, specialty dye, and advanced materials sectors seeking precise molecular building blocks.

Application

• Key Intermediate for Dyes and Pigments: Serves as a crucial precursor in the synthesis of azo dyes, acid dyes, and other complex colorants, particularly those requiring high light and wash fastness.
• Specialty Chemical Synthesis: Used in organic synthesis routes to create more complex molecules for research and development in fine chemicals.
• Functional Material Development: Investigated for use in the development of advanced materials where its specific sulfonic acid and aromatic amine groups can impart desired properties.
• Laboratory Research & Analytical Standards: Employed as a reference standard or reagent in analytical chemistry and pharmaceutical research laboratories.

Basic Information

Product Name	5-[[4-(Aminosulphonyl)-2-Nitrophenyl]Amino]-2-Anilinobenzenesulphonic Acid
CAS No.	72829-30-2
Molecular Formula	C18H16N4O7S2
Molecular Weight	464.47 g/mol
Synonyms	5-[(4-Sulfamoyl-2-nitrophenyl)amino]-2-anilinobenzenesulfonic acid; Benzenesulfonic acid, 5-[[4-(aminosulfonyl)-2-nitrophenyl]amino]-2-(phenylamino)-; 2-Anilino-5-[(4-sulfamoyl-2-nitrophenyl)amino]benzenesulfonic acid; 5-((4-Sulfamoyl-2-nitrophenyl)amino)-2-(phenylamino)benzenesulfonic acid; CAS 72829-30-2
EINECS	Contact for details

Quality Control

Our production of 5-[[4-(Aminosulphonyl)-2-Nitrophenyl]Amino]-2-Anilinobenzenesulphonic Acid adheres to stringent internal quality protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with every shipment to support your quality assurance processes.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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