Description

Potassium 2-[4-[(4-Hydroxybiphenyl-3-Yl)Azo]Phenoxy]Ethyl Sulphate is a high-purity, water-soluble anionic azo dye intermediate essential for creating vibrant and stable colorants. This compound is valued for its excellent coupling properties and its role in synthesizing dyes with superior light and wash fastness. It is a critical raw material for manufacturers in the textile, ink, and specialty polymer industries seeking to develop high-performance coloring agents.

Application

• Textile Dye Synthesis: A key intermediate for producing acid, direct, and reactive dyes used on nylon, wool, silk, and cellulose fibers.
• Inkjet and Printing Inks: Used in the manufacture of colorants for high-quality inks, providing bright shades and good stability.
• Functional Polymer Colorants: Employed in the synthesis of dyes for plastics, coatings, and other polymeric materials requiring specific color properties.
• Research & Development: Serves as a building block in chemical research for developing novel azo compounds and studying dye chemistry.
• Specialty Chemical Manufacturing: Used in formulating specialized colorants for leather, paper, and other industrial applications.

Basic Information

Item	Detail
Product Name	Potassium 2-[4-[(4-Hydroxybiphenyl-3-Yl)Azo]Phenoxy]Ethyl Sulphate
CAS No.	83221-41-4
Molecular Formula	C20H17KN2O6S
Molecular Weight	452.52 g/mol
Synonyms	Potassium 2-{4-[(4-Hydroxy[1,1'-biphenyl]-3-yl)diazenyl]phenoxy}ethanesulfonate; 2-[4-[(4-Hydroxybiphenyl-3-yl)azo]phenoxy]ethyl sulfate potassium salt; Azo Dye Intermediate 83221-41-4; [4-[(4-Hydroxy-3-biphenylyl)azo]phenoxy]ethyl sulfate potassium salt; 4-[(4-Hydroxy-3-biphenylyl)azo]phenoxyethyl sulfate potassium salt; Potassium 4-[(4-hydroxy-3-phenylphenyl)azo]phenoxyethyl sulphate
EINECS	Contact for details

Quality Control

Our production of Potassium 2-[4-[(4-Hydroxybiphenyl-3-Yl)Azo]Phenoxy]Ethyl Sulphate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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