Description

Potassium p-[(p-Aminophenyl)Azo]Benzenesulphonate is an azo dye intermediate and a potassium salt of a sulfonated aromatic azo compound. This specialized chemical is valued for its role in synthesizing high-performance dyes and pigments, offering excellent water solubility and chromophoric properties. It is primarily required by manufacturers in the dye and pigment industry, as well as researchers developing advanced colorants for textiles, inks, and specialty coatings.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of acid dyes, direct dyes, and reactive dyes used for coloring textiles like wool, silk, and nylon.
• Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and coatings, where its sulfonate group enhances solubility and processing.
• Research & Development: Serves as a crucial reagent in chemical research for developing novel chromophores and studying azo coupling reactions.
• Specialty Colorants: Potential use in formulating specialty colorants for paper, leather, and food colorants (subject to appropriate regulatory approvals and purity grades).
• Analytical Chemistry: May be employed as a standard or reagent in analytical methods due to its distinct color and chemical structure.

Basic Information

Product Name	Potassium p-[(p-Aminophenyl)Azo]Benzenesulphonate
CAS No.	85187-24-2
Molecular Formula	C18H13KN4O3S
Molecular Weight	404.48 g/mol
Synonyms	Potassium 4-[(4-aminophenyl)azo]benzenesulfonate; 4-[(4-Aminophenyl)azo]benzenesulfonic acid potassium salt; Benzenesulfonic acid, 4-[(4-aminophenyl)azo]-, potassium salt; p-[(p-Aminophenyl)azo]benzenesulfonic acid potassium salt; C.I. 18050; Potassium Aminoazobenzene Sulfonate
EINECS	Contact for details

Quality Control

Our production of Potassium p-[(p-Aminophenyl)Azo]Benzenesulphonate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure consistency and reliability. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance processes.

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 to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Complies with ICH guidelines

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