Description

4-Amino-6-[[4-[[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino]Sulphonyl]Phenyl]Azo]-5-Hydroxy-3-[(4-Nitrophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Potassium Salt is a complex, high-purity azo dye intermediate of significant industrial importance. This compound is valued for its precise molecular structure, which is critical for imparting specific color properties and performance characteristics in advanced dye synthesis. It is primarily sought after by manufacturers in the specialty chemicals, textile dyeing, and advanced materials sectors who require reliable, high-quality intermediates for producing vibrant and stable colorants.

Application

This potassium salt azo dye intermediate serves as a key building block in several high-value industrial processes. Its primary applications include:

• Synthesis of High-Performance Textile Dyes: Used as a critical precursor for manufacturing complex, wash-fast, and light-fast azo dyes for synthetic and natural fibers.
• Production of Specialty Pigments: Employed in the creation of organic pigments for inks, coatings, and plastics where color consistency and stability are paramount.
• Research & Development: Serves as a valuable reference standard and starting material in chemical R&D for novel chromophores and functional dyes.
• Functional Dye Manufacturing: Potential use in the synthesis of dyes for specialized applications such as laser dyes, optical data storage, or non-linear optical materials.

Basic Information

Product Name	4-Amino-6-[[4-[[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino]Sulphonyl]Phenyl]Azo]-5-Hydroxy-3-[(4-Nitrophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Potassium Salt
CAS No.	84878-17-1
Molecular Formula	C40H24KN9O15S3
Molecular Weight	1022.11 g/mol (approx.)
Synonyms	Potassium 4-amino-6-{[4-({[4-((2,4-dihydroxyphenyl)diazenyl)phenyl]amino}sulfonyl)phenyl]diazenyl}-5-hydroxy-3-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonate; CI 28400 (related); Azo Dye Intermediate 84878-17-1; Complex Azo Dye Potassium Salt; Trisazo Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

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 light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

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