Description

2,5-Bis(4-Nitrobenzamido)Benzenesulfonic Acid is a specialized aromatic sulfonic acid derivative featuring nitro-substituted benzamido groups. This compound matters as a high-value chemical intermediate, prized for its unique molecular architecture that enables the synthesis of complex dyes, pigments, and advanced materials. It is primarily needed by manufacturers in the fine chemical, specialty dye, and advanced polymer industries for research and development as well as production-scale applications.

Application

• Key intermediate in the synthesis of high-performance azo dyes and pigments.
• Precursor for functional polymers and liquid crystal materials requiring sulfonic acid groups.
• Building block in pharmaceutical research for creating novel active pharmaceutical ingredients (APIs).
• Used in the development of corrosion inhibitors and specialty surfactants.
• Research chemical in academic and industrial laboratories for organic synthesis studies.
• Potential component in the manufacture of electro-optical materials and sensors.

Basic Information

Product Name	2,5-Bis(4-Nitrobenzamido)Benzenesulfonic Acid
CAS No.	6661-57-0
Molecular Formula	C20H14N4O9S
Molecular Weight	486.41 g/mol
Synonyms	Benzenesulfonic acid, 2,5-bis[(4-nitrophenyl)carbonyl]amino]-; 2,5-Bis(4-nitrobenzamido)benzenesulfonate; 4,4'-Dinitro-2,2'-sulfonyldibenzanilide; NSC 403796; 2,5-Bis(p-nitrobenzamido)benzenesulfonic acid; 2-Amino-5-[(4-nitrobenzoyl)amino]benzenesulfonic acid 4-nitrobenzoate
EINECS	Contact for details

Quality Control

Our 2,5-Bis(4-Nitrobenzamido)Benzenesulfonic Acid undergoes rigorous quality testing to ensure compliance with industry standards. We implement strict in-process controls and final batch analysis to guarantee identity, purity, and consistency. Certificates of Analysis (COA) detailing all relevant specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 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.