Description

3-Methyl-4-Phenylazophenol is an azo dye intermediate and analytical reagent characterized by its distinct chromophoric properties. This compound is valued for its role in synthesizing colorants and as a chemical probe in research due to its light-sensitive azo linkage. It is primarily utilized by manufacturers and R&D laboratories in the dyes and pigments, analytical chemistry, and specialty chemical synthesis sectors.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes and organic pigments for industrial applications.
• Analytical Reagent: Used in laboratory settings as a pH indicator or colorimetric agent in chemical analysis.
• Research & Development: Serves as a building block or model compound in organic synthesis and photochemical studies.
• Liquid Crystal Displays (LCDs): Potential use in the development of dichroic dyes for display technologies.
• Non-Linear Optical Materials: Investigated for applications in materials science due to its chromophore structure.
• Chemical Sensor Development: Employed in the design of sensors that respond to light or specific chemical environments.

Basic Information

Item	Detail
Product Name	3-Methyl-4-Phenylazophenol
CAS No.	1435-88-7
Molecular Formula	C13H12N2O
Molecular Weight	212.25 g/mol
Synonyms	4-[(E)-Phenyldiazenyl]-3-methylphenol; 4-(Phenylazo)-3-methylphenol; 3-Methyl-4-(phenylazo)phenol; C.I. Solvent Yellow 7; Oil Yellow; Azoic Coupling Component 4; 1-Hydroxy-2-methyl-4-phenylazobenzene; p-Hydroxy-m-methylazobenzene
EINECS	215-858-8

Quality Control

Our 3-Methyl-4-Phenylazophenol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR spectroscopy, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting all critical quality attributes are 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). Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	125 - 130 °C
Loss on Drying	≤ 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.