Description

2-[(4-Chlorophenyl)Azo]-4-Methylphenol is an azo dye intermediate characterized by its distinct molecular structure, which is pivotal for imparting specific color properties. This compound matters for its role as a key building block in the synthesis of high-performance pigments and dyes, offering excellent lightfastness and thermal stability. Industries that require precise color formulation, such as plastics, inks, coatings, and specialty textiles, rely on this intermediate for consistent quality and performance.

Application

• Pigment Manufacturing: A crucial precursor for synthesizing high-performance organic pigments, particularly yellows and oranges, used in plastics and coatings.
• Dye Production: Serves as an intermediate in the manufacture of azo dyes for coloring textiles, leather, and paper.
• Industrial Inks: Used in the formulation of specialty printing inks that require durability and color consistency.
• Polymer Colorants: Incorporated into masterbatches for coloring engineering plastics and synthetic fibers.
• Research & Development: Employed in chemical research as a model compound for studying azo coupling reactions and photochemical properties.
• Liquid Crystal Displays (LCDs): Potential application as a dichroic dye intermediate in display technologies.

Basic Information

Product Name	2-[(4-Chlorophenyl)Azo]-4-Methylphenol
CAS No.	2491-56-7
Molecular Formula	C13H11ClN2O
Molecular Weight	246.69 g/mol
Synonyms	4-Methyl-2-[(4-chlorophenyl)azo]phenol; C.I. Solvent Yellow 7; 1-(4-Chlorophenyl)azo-2-hydroxy-5-methylbenzene; 2-Hydroxy-5-methyl-4'-chloroazobenzene; 4'-Chloro-2-hydroxy-5-methylazobenzene; Azosol Fast Yellow GRA; Azoic Coupling Component 107; 2-[(p-Chlorophenyl)azo]-p-cresol
EINECS	219-672-4

Quality Control

Our 2-[(4-Chlorophenyl)Azo]-4-Methylphenol is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, and we support compliance with global regulatory frameworks such as REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, the container should be opaque or kept in dark conditions.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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