Description

4-Phenylazophenol is an azo dye intermediate and analytical reagent characterized by its distinct color-changing properties. This compound is valued for its role as a versatile chemical building block and a pH indicator in various industrial and research applications. It is primarily utilized by manufacturers in the dye and pigment industry, as well as by laboratories for analytical chemistry and material science research.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and plastics.
• Used as a pH indicator in analytical chemistry and laboratory research.
• Building block for liquid crystal materials and other advanced organic compounds.
• Potential reagent in photochemical studies due to its light-sensitive azo group.
• Chemical standard for quality control and calibration in analytical methods.
• Research chemical in the development of new materials and sensors.

Basic Information

Product Name	4-Phenylazophenol
CAS No.	1689-82-3
Molecular Formula	C12H10N2O
Molecular Weight	198.22 g/mol
Synonyms	p-Hydroxyazobenzene; 4-(Phenylazo)phenol; Azobenzene-4-ol; Phenol, 4-(phenylazo)-; p-Phenylazophenol; 1-Hydroxy-4-phenylazobenzene; Azo Violet (indicator); C.I. Solvent Yellow 7; NSC 6178
EINECS	Contact for details

Quality Control

Our 4-Phenylazophenol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	152 - 156 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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