Description

N,n-Diethyl-3-Methyl-4-[(5-Phenyl-1H-Pyrazol-3-Yl)Azo]Aniline is a specialized azo dye intermediate known for its distinct chromophoric properties. This compound matters for its role in synthesizing high-performance dyes and pigments, offering excellent color fastness and stability in demanding applications. It is primarily needed by manufacturers in the textile, ink, and specialty polymer industries seeking to develop vibrant and durable colorants. The CAS number for this product is 93963-73-6.

Application

This azo compound serves as a critical building block in various colorant manufacturing processes. Its primary applications include:

• Textile Dye Synthesis: As a key intermediate for producing disperse dyes and reactive dyes for synthetic fibers like polyester and nylon.
• Inkjet Ink Formulation: Used in the development of high-quality pigments for industrial and commercial printing inks.
• Plastic and Polymer Coloring: Imparts color to engineering plastics and specialty polymers requiring thermal and light stability.
• Liquid Crystal Display (LCD) Color Filters: Employed in the creation of precise colorants for electronic display technologies.
• Research and Development: Serves as a standard or precursor in organic synthesis and photochemical research.
• Analytical Chemistry: Can be used as a chromogenic reagent or pH indicator in specific test methods.

Basic Information

Product Name	N,n-Diethyl-3-Methyl-4-[(5-Phenyl-1H-Pyrazol-3-Yl)Azo]Aniline
CAS No.	93963-73-6
Molecular Formula	C21H25N5
Molecular Weight	347.46 g/mol
Synonyms	3-[(4-(Diethylamino)-2-methylphenyl)azo]-5-phenyl-1H-pyrazole; C.I. Disperse Yellow 119; Disperse Yellow 119; 4-[(5-Phenyl-1H-pyrazol-3-yl)azo]-N,N-diethyl-3-methylaniline; N,N-Diethyl-3-methyl-4-[(5-phenyl-1H-pyrazol-3-yl)azo]aniline; Azo Pyrazole Yellow Intermediate; 93963-73-6; Solvent Yellow 163 (related)
EINECS	Contact for details

Quality Control

Our N,n-Diethyl-3-Methyl-4-[(5-Phenyl-1H-Pyrazol-3-Yl)Azo]Aniline is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chromatic performance, and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to reddish-brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents

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