Description

4-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[[4-(Phenylamino)-3-Sulphophenyl]Azo]Phenyl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, complex azo dye intermediate of significant commercial importance. Its intricate molecular structure, featuring multiple azo linkages and sulphonic acid groups, makes it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, colorfast products with specific technical properties.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Production of Acid Dyes: Used in manufacturing acid dyes for coloring wool, silk, and nylon, offering good wash and light fastness.
• Specialty Pigment Synthesis: Serves as a precursor for creating complex organic pigments used in inks, plastics, and coatings.
• Textile Printing Inks: Employed in formulating advanced textile printing inks that require specific hue and stability.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Leather Dyeing: A component in the production of dyes for the leather industry, providing deep, durable colors.
• Paper Coloring: Used in the manufacture of dyes for specialty paper products.

Basic Information

Item	Details
Product Name	4-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[[4-(Phenylamino)-3-Sulphophenyl]Azo]Phenyl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	94199-99-2
Molecular Formula	C34H22N8O14S3 • xNa
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 94199-99-2; C.I. Reactive Orange; Azo Dye Intermediate (Complex); Sodium 4-[[2,4-dihydroxy-3-[(4-nitrophenyl)azo]-5-[[4-(phenylamino)-3-sulfophenyl]azo]phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonate; 5-Hydroxynaphthalene-2,7-disulfonic acid, 4-[[2,4-dihydroxy-3-[(4-nitrophenyl)azo]-5-[[4-(phenylamino)-3-sulfophenyl]azo]phenyl]azo]-, sodium salt; Azo dye derived from diazotized 4-nitroaniline and H-acid derivative.
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for your synthesis processes. Every lot is analyzed using modern analytical techniques including HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment, ensuring full traceability and compliance with your internal quality standards.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and handling. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility (Water)	Partially soluble to soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities Max. 5.0%

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