Description

Sodium 5-[[2-Nitro-4-Sulphamoylphenyl]Amino]-2-[[4-[[2-Nitro-4-Sulphamoylphenyl]Amino]Phenyl]Amino]Benzenesulphonate is a high-purity, specialized organic salt compound valued for its functional chemical structure. This product is critical for industries requiring precise and reliable chemical intermediates for advanced synthesis. It is primarily utilized in the research and development of specialty dyes, pigments, and high-performance materials.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of complex azo dyes and high-grade organic pigments.
• Chemical Research & Development: Serves as a building block for novel compounds in academic and industrial R&D laboratories.
• Specialty Material Production: Used in the manufacturing of advanced materials where specific sulfonated aromatic structures are required.
• Analytical Chemistry: May be employed as a standard or reagent in specific analytical methodologies.

Basic Information

Product Name	Sodium 5-[[2-Nitro-4-Sulphamoylphenyl]Amino]-2-[[4-[[2-Nitro-4-Sulphamoylphenyl]Amino]Phenyl]Amino]Benzenesulphonate
CAS No.	71873-58-0
Molecular Formula	C24H18N6Na2O11S3
Molecular Weight	764.66 g/mol
Synonyms	Benzenesulfonic acid, 5-[[(2-nitro-4-sulfamoylphenyl)amino]-2-[[4-[[(2-nitro-4-sulfamoylphenyl)amino]phenyl]amino]-, disodium salt; Direct Black 22 (C.I. 35435); C.I. Direct Black 22; Direct Black 22, disodium salt; Pontamine Black E; 71873-58-0; Sodium 5-[(2-nitro-4-sulfamoylanilino)-2-[(4-[(2-nitro-4-sulfamoylanilino)phenyl]amino]benzenesulfonate
EINECS	Contact for details

Quality Control

Our Sodium 5-[[2-Nitro-4-Sulphamoylphenyl]Amino]-2-[[4-[[2-Nitro-4-Sulphamoylphenyl]Amino]Phenyl]Amino]Benzenesulphonate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to guarantee compliance with your technical requirements.

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 sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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