Description

3-[(2,5-Dichlorophenyl)Azo]-2,6-Pyridinediamine is a specialized azo dye intermediate characterized by its distinct molecular structure, which is critical for imparting specific color and performance properties. This compound matters for its role in synthesizing high-performance pigments and dyes with excellent lightfastness and chemical stability. It is primarily needed by manufacturers in the pigments, dyes, and specialty chemical industries for applications requiring precise colorant development.

Application

• Dye and Pigment Synthesis: A key intermediate for producing high-value azo pigments and dyes, particularly for applications demanding specific shades of red, orange, or brown.
• Textile Colorants: Used in the manufacturing of colorants for synthetic and natural fibers, where its structure contributes to wash and light fastness.
• Ink Formulations: Employed in the production of industrial and specialty printing inks, including those for plastics and packaging.
• Plastic and Polymer Coloring: Serves as a precursor for colorants used in coloring plastics, resins, and synthetic polymers.
• Research & Development: Utilized in chemical R&D for developing new chromophores and studying structure-property relationships in color chemistry.
• Analytical Reagents: Potential use as a staining agent or chromogenic substrate in specific analytical and biochemical assays.

Basic Information

Product Name	3-[(2,5-Dichlorophenyl)Azo]-2,6-Pyridinediamine
CAS No.	74037-44-8
Molecular Formula	C11H9Cl2N5
Molecular Weight	282.13 g/mol
Synonyms	2,6-Pyridinediamine, 3-[(2,5-dichlorophenyl)azo]-; 3-(2,5-Dichlorophenylazo)-2,6-diaminopyridine; 3-[(2,5-Dichlorophenyl)diazenyl]pyridine-2,6-diamine; Azo dye intermediate 74037-44-8; 2,6-Diamino-3-(2',5'-dichlorophenylazo)pyridine; 3-(2,5-Dichlorophenylhydrazono)-2,6-pyridinediamine; C.I. Disperse Orange (related class)
EINECS	Contact for details

Quality Control

Our production of 3-[(2,5-Dichlorophenyl)Azo]-2,6-Pyridinediamine adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request 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 room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

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
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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