Description

5-[(p-Sulfophenyl)Azo]Salicylic Acid Methyl Ester Potassium Salt is a specialized azo dye intermediate and analytical reagent. This compound is valued for its precise chromophoric properties and its role as a key building block in the synthesis of more complex colorants and functional materials. It is primarily required by manufacturers and R&D laboratories in the dyes and pigments, analytical chemistry, and specialty chemical synthesis sectors.

Application

• Dye and Pigment Intermediate: A crucial precursor for synthesizing acid dyes, reactive dyes, and other azo-based colorants.
• Analytical Reagent: Used as a chromogenic agent or indicator in spectrophotometric analysis and complexometric titrations.
• Research & Development: Serves as a model compound or starting material in organic synthesis and photochemical studies.
• Functional Material Synthesis: Potential use in creating materials for sensors, nonlinear optics, or light-harvesting applications.
• Textile Industry: Imparting color to fibers where its sulfonate group provides water solubility and affinity.
• Ink Formulation: A component in the production of specialized inks requiring specific light-fastness and hue properties.

Basic Information

Item	Details
Product Name	5-[(p-Sulfophenyl)Azo]Salicylic Acid Methyl Ester Potassium Salt
CAS No.	745010-25-7
Molecular Formula	C14H11KN2O6S
Molecular Weight	374.41 g/mol
Synonyms	Potassium 5-[(4-sulfophenyl)azo]salicylate methyl ester; Methyl 5-[(4-sulfophenyl)azo]salicylate potassium salt; 5-[(p-Sulfophenyl)azo]salicylic acid methyl ester K salt; Azo dye intermediate 745010-25-7; Potassium methyl 5-[(4-sulfonatophenyl)diazenyl]-2-hydroxybenzoate; Methyl ester of Mordant Yellow 5 potassium salt; p-Sulfophenylazosalicylic acid methyl ester potassium derivative
EINECS	Contact for details

Quality Control

Our production of 5-[(p-Sulfophenyl)Azo]Salicylic Acid Methyl Ester Potassium Salt adheres to stringent quality protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, and identification via FT-IR and UV-Vis spectroscopy. A Certificate of Analysis (COA) detailing all specifications is 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, and well-ventilated area at room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	Conforms
Assay (HPLC)	≥ 95.0%
Purity (HPLC, Area%)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	Conforms to theoretical range
Heavy Metals (as Pb)	≤ 20 ppm

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