Description

Disodium 5-[[4-[(4-Nitro-2-Sulphonatophenyl)Amino]Phenyl]Azo]-8-[[4-[(Phenylsulphonyl)Oxy]Phenyl]Azo]Naphthalene-2-Sulphonate is a high-purity, synthetic azo dye intermediate of significant industrial importance. Its complex, multi-functional structure provides excellent chromophoric properties, making it a critical precursor for the synthesis of specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, high-performance colorants with specific light-fastness and solubility characteristics.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-grade reactive dyes for cotton and cellulose fiber dyeing.
• Specialty Pigment Manufacturing: Used in the production of high-performance organic pigments for automotive and industrial coatings.
• Inkjet Ink Formulations: Serves as a precursor for dyes used in high-quality digital printing inks, requiring precise color strength and stability.
• Textile Printing: Employed in the manufacture of dyes for textile printing processes demanding bright shades and good wash-fastness.
• Functional Dye Synthesis: Intermediate for creating dyes used in non-textile applications such as lasers, optical data storage, and sensors.
• Research & Development: Used in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.

Basic Information

Product Name	Disodium 5-[[4-[(4-Nitro-2-Sulphonatophenyl)Amino]Phenyl]Azo]-8-[[4-[(Phenylsulphonyl)Oxy]Phenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	72986-60-8
Molecular Formula	C40H24N6Na2O13S4
Molecular Weight	962.88 g/mol (approx.)
Synonyms	Disodium 5-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-8-[[4-[(phenylsulfonyl)oxy]phenyl]azo]naphthalene-2-sulfonate; C.I. Reactive Orange 107 intermediate; Azo dye intermediate 72986-60-8; Disulfonated bis-azo naphthalene derivative; 5,8-Bis(arylazo)naphthalene-2,?-disulfonate disodium salt; Reactive dye precursor
EINECS	Contact for details

Quality Control

Our Disodium 5-[[4-[(4-Nitro-2-Sulphonatophenyl)Amino]Phenyl]Azo]-8-[[4-[(Phenylsulphonyl)Oxy]Phenyl]Azo]Naphthalene-2-Sulphonate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity for sensitive synthesis applications. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing purity (typically >95% by HPLC), residual solvents, and heavy metal content is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility (1% in Water)	Clear, orange solution

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