Description

4-[[4-(Diethylamino)-2-Hydroxyphenyl]Azo]-1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One CAS NO 10527-56-7 is a high-purity azo dye intermediate known for its distinct chromophoric properties. This compound is critical for manufacturers requiring precise color development and excellent lightfastness in their final products. It is primarily utilized by the pigment and dye industries for producing high-performance colorants.

Application

This specialized azo compound serves as a key building block in the synthesis of advanced colorants. Its primary and related applications include:

• Pigment Manufacturing: Core intermediate for producing high-performance organic pigments used in plastics, coatings, and inks.
• Dye Synthesis: Precursor for solvent dyes and disperse dyes with applications in textiles and specialty polymers.
• Functional Colorants: Used in the development of colorants for electronics, optical data storage, and laser printing.
• Research & Development: Serves as a standard or starting material in chemical research for novel chromophore design.
• Analytical Reagents: Potential use as a staining agent or indicator in specific analytical chemistry applications.

Basic Information

Product Name	4-[[4-(Diethylamino)-2-Hydroxyphenyl]Azo]-1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One
CAS No.	10527-56-7
Molecular Formula	C21H25N5O2
Molecular Weight	379.46 g/mol
Synonyms	1,2-Dihydro-1,5-dimethyl-2-phenyl-4-[(4-(diethylamino)-2-hydroxyphenyl)azo]-3H-pyrazol-3-one; C.I. Solvent Yellow 56; Disperse Yellow 201; 4-[(4-(Diethylamino)-2-hydroxyphenyl)azo]-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one; Azoic Diazo Component 56; 1,5-Dimethyl-2-phenyl-4-[(4-(diethylamino)-2-hydroxyphenyl)azo]-1,2-dihydro-3H-pyrazol-3-one; Pyrazolone Azo Dye Intermediate
EINECS	Contact for details

Quality Control

Our 4-[[4-(Diethylamino)-2-Hydroxyphenyl]Azo]-1,2-Dihydro-1,5-Dimethyl-2-Phenyl-3H-Pyrazol-3-One is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial synthesis. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics 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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystals
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.