Description

4-Chloro-2-[(E)-(4-Chlorophenyl)Diazenyl]Phenol is an azo dye intermediate characterized by its distinct molecular structure containing both phenolic and diazenyl functional groups. This compound is valued for its role in the synthesis of specialized dyes and pigments, offering precise color properties and chemical stability. It is primarily required by manufacturers in the chemical synthesis, dye and pigment, and advanced materials industries for research and production applications.

Application

• Dye and Pigment Synthesis: A key intermediate for producing azo dyes, particularly those yielding yellow, orange, and red hues for textiles, inks, and plastics.
• Chemical Research & Development: Used as a building block in organic synthesis for novel chromophores and functional materials.
• Liquid Crystal Displays (LCDs): Potential application in the development of dichroic dyes for display technologies.
• Analytical Chemistry: May serve as a reagent or standard in chromatographic analysis and method development.
• Photographic Chemicals: Can be utilized in the formulation of light-sensitive layers and color couplers.
• Polymer Additives: Investigated for use as a UV stabilizer or colorant in specialized polymer formulations.

Basic Information

Product Name	4-Chloro-2-[(E)-(4-Chlorophenyl)Diazenyl]Phenol
CAS No.	2491-55-6
Molecular Formula	C12H8Cl2N2O
Molecular Weight	267.11 g/mol
Synonyms	4-Chloro-2-[(E)-(4-chlorophenyl)diazenyl]phenol; 2,4'-Dichloro-2'-hydroxyazobenzene; 2-Hydroxy-4-chloro-4'-chloroazobenzene; C.I. Solvent Yellow 7; Phenol, 4-chloro-2-[(E)-(4-chlorophenyl)diazenyl]-; (E)-4-Chloro-2-(4-chlorophenyldiazenyl)phenol; Azobenzene, 2,4'-dichloro-2'-hydroxy-; 4-Chloro-2-(p-chlorophenyldiazenyl)phenol
EINECS	219-667-0

Quality Control

Our 4-Chloro-2-[(E)-(4-Chlorophenyl)Diazenyl]Phenol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications. Certificates of Analysis (COA) detailing all test results are provided and available upon request to support your quality assurance protocols.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.