Description

5-[(4-Chlorophenyl)Azo]Salicylic Acid CAS NO 21461-12-1 is an azo dye intermediate and analytical reagent known for its distinct chromophoric properties. This compound is valued for its role in synthesizing specific colorants and as a chelating agent in various chemical processes. It is primarily required by manufacturers in the dye and pigment industry, as well as by research laboratories for analytical and developmental applications.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and plastics.
• Used as a chelating agent in analytical chemistry and metal ion detection.
• Potential component in the formulation of specialized colorimetric indicators and sensors.
• Research and development of novel functional dyes with specific light-absorption characteristics.
• Starting material for fine chemical synthesis in pharmaceutical and agrochemical research.
• Laboratory reagent for teaching and analytical method development.

Basic Information

Product Name	5-[(4-Chlorophenyl)Azo]Salicylic Acid
CAS No.	21461-12-1
Molecular Formula	C13H9ClN2O3
Molecular Weight	276.68 g/mol
Synonyms	5-[(4-Chlorophenyl)diazenyl]-2-hydroxybenzoic Acid; C.I. Mordant Yellow 5R; Salicylic Acid, 5-[(p-Chlorophenyl)azo]-; 5-(4-Chlorophenylazo)salicylic Acid; Mordant Yellow 5R; Acid Yellow M; 2-Hydroxy-5-[(4-chlorophenyl)azo]benzoic Acid
EINECS	244-413-8

Quality Control

Our 5-[(4-Chlorophenyl)Azo]Salicylic Acid is produced under a rigorous quality management system. Each batch is tested to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your requirements.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after each use to prevent degradation.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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