Description

4-[(4-Nitrophenyl)Azo]-2,5-Xylidine CAS NO 6492-50-8 is a synthetic azo dye intermediate, also known as C.I. Disperse Yellow 3, valued for its ability to impart a bright yellow color. This compound is a critical building block in the production of high-performance disperse dyes, which are essential for coloring hydrophobic fibers like polyester, nylon, and acetate. It is primarily needed by manufacturers in the textile, plastics, and specialty chemical industries seeking reliable and consistent colorant precursors.

Application

• Primary intermediate for the synthesis of C.I. Disperse Yellow 3 and related disperse dyes.
• Coloration of synthetic fibers, including polyester, nylon, and acetate, in textile manufacturing.
• Pigment and colorant production for plastics and polymers.
• Used in the formulation of inks and toners for specialized printing applications.
• Research and development of novel azo-based compounds in academic and industrial laboratories.
• Potential use as a chemical reagent in analytical chemistry and photochemical studies.

Basic Information

Product Name	4-[(4-Nitrophenyl)Azo]-2,5-Xylidine
CAS No.	6492-50-8
Molecular Formula	C14H14N4O2
Molecular Weight	270.29 g/mol
Synonyms	2,5-Dimethyl-4-[(4-nitrophenyl)azo]aniline; C.I. 11855; C.I. Disperse Yellow 3; Disperse Yellow 3; 4-[(4-Nitrophenyl)azo]-2,5-dimethylaniline; 1-Amino-2,5-dimethyl-4-[(4-nitrophenyl)azo]benzene; 4-Amino-2',5'-dimethyl-4'-nitroazobenzene; 2,5-Xylidine, 4-[(4-nitrophenyl)azo]-
EINECS	229-352-6

Quality Control

Our 4-[(4-Nitrophenyl)Azo]-2,5-Xylidine is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee consistency and reliability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at 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.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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