Description

Disodium 5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate with excellent color strength and stability. This compound is valued for its role as a critical precursor in synthesizing vibrant and durable dyes and pigments for demanding industrial applications. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable performance in their colorant formulations.

Application

• Textile Dyeing: A key intermediate for producing high-performance acid and direct dyes for nylon, wool, silk, and paper.
• Ink Manufacturing: Used in the synthesis of pigments for inks in packaging, printing, and writing instruments.
• Industrial Coatings: Serves as a precursor for pigments used in automotive paints, industrial finishes, and plastics coloration.
• Leather Processing: Employed in the production of dyes for coloring leather goods with good light and wash fastness.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo dye chemistry.
• Specialty Chemicals: Acts as a building block for functional dyes used in biological staining or as pH indicators.

Basic Information

Product Name	Disodium 5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate
CAS No.	13164-93-7
Molecular Formula	C35H24N6Na2O8S
Molecular Weight	734.64 g/mol
Synonyms	Acid Yellow 219; C.I. 13980; Disodium 5-[(E)-[4'-[(E)-(4,5-dihydro-3-methyl-5-oxo-1-(4-sulfonatophenyl)-1H-pyrazol-4-yl)diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-2-hydroxybenzoate; Salicylic acid, 5-[[4'-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo][1,1'-biphenyl]-4-yl]azo]-, disodium salt; 2-Hydroxy-5-[[4'-[(3-methyl-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl)azo][1,1'-biphenyl]-4-yl]azo]benzoic acid disodium salt; Yellow 219; Azo dye intermediate 13164-93-7
EINECS	Contact for details

Quality Control

Our Disodium 5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting key parameters such as assay, impurity profile, and physical properties. Our quality commitment ensures the material meets the specifications required for high-end industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); ensure containers are sealed after each use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Orange to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble
pH (1% Solution)	6.0 - 8.0

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