Description

n-(4-Chloro-2-Methylphenyl)-2-[(4-Chloro-2-Nitrophenyl)Azo]-3-Oxobutanamide is a specialized azo dye intermediate of significant commercial importance. This compound matters for its role as a key precursor in the synthesis of high-performance pigments and dyes, offering excellent color properties and stability. Industries that require high-quality, durable colorants, such as textile manufacturing, ink production, and plastics coloration, are the primary users of this chemical.

Application

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

• Disperse Dye Synthesis: A key intermediate for producing high-grade disperse dyes used in polyester and acetate fiber dyeing.
• Pigment Manufacturing: Used in the creation of organic pigments for plastics, masterbatches, and synthetic resins.
• Ink Formulation: Employed in the production of industrial and specialty printing inks requiring specific chromatic properties.
• Textile Colorants: Integral to the synthesis of dyes that provide excellent wash and light fastness on synthetic fabrics.
• Research & Development: Serves as a reference standard and starting material in chemical R&D for novel colorant systems.
• Functional Dyes: Potential use in the development of dyes for non-textile applications, such as in optical materials.

Basic Information

Product Name	n-(4-Chloro-2-Methylphenyl)-2-[(4-Chloro-2-Nitrophenyl)Azo]-3-Oxobutanamide
CAS No.	32432-45-4
Molecular Formula	C17H13Cl2N4O4
Molecular Weight	408.22 g/mol
Synonyms	2-[(4-Chloro-2-nitrophenyl)azo]-3-oxo-N-(4-chloro-2-methylphenyl)butanamide; C.I. Disperse Yellow 119; Disperse Yellow 119; Butanamide, N-(4-chloro-2-methylphenyl)-2-[(4-chloro-2-nitrophenyl)azo]-3-oxo-; Pigment Yellow 119 (related); Azo dye intermediate 32432-45-4; N-(4-Chloro-2-methylphenyl)-2-((4-chloro-2-nitrophenyl)diazenyl)-3-oxobutanamide
EINECS	Contact for details

Quality Control

Our production of this azo intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and purity suitable for high-end dye synthesis. Quality is verified through analytical methods including HPLC, IR spectroscopy, and titration. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources and incompatible materials. 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 Standard
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH Guidelines

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