Description

4-[(2,5-Dichlorophenyl)Azo]-3-Hydroxy-2-Naphtho-o-Toluidide is a high-purity, synthetic organic pigment and azo dye intermediate of significant industrial importance. Its value lies in its ability to impart stable, vivid colors, making it a critical component for producing high-performance pigments. This compound is primarily needed by manufacturers in the pigments, dyes, plastics, and coatings industries for applications requiring durable coloration.

Application

• Primary Pigment Manufacturing: Serves as a key intermediate in the synthesis of high-performance organic pigments, particularly diarylide yellows and oranges.
• Plastics and Polymer Coloring: Used to produce colorants for engineering plastics, PVC, polyolefins, and synthetic fibers, offering good heat stability and lightfastness.
• Industrial Coatings and Inks: Essential for formulating solvent-based and water-based paints, printing inks, and decorative coatings that require color consistency and durability.
• Specialty Dyes: Acts as a precursor for azo dyes used in textiles, leather, and paper where specific color shades and properties are needed.
• Masterbatch Production: Utilized in the creation of color concentrates for uniform dispersion in various polymer matrices.

Basic Information

Product Name	4-[(2,5-Dichlorophenyl)Azo]-3-Hydroxy-2-Naphtho-o-Toluidide
CAS No.	32332-65-3
Molecular Formula	C23H16Cl2N4O2
Molecular Weight	451.31 g/mol
Synonyms	Pigment Yellow 12 Intermediate; C.I. 21090; Diarylide Yellow AAA Intermediate; Benzidine Yellow AAA Intermediate; 3-Hydroxy-N-(2-methylphenyl)-4-[(2,5-dichlorophenyl)azo]-2-naphthamide; AAA Yellow Pigment Intermediate; o-Toluidide Azo Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of 4-[(2,5-Dichlorophenyl)Azo]-3-Hydroxy-2-Naphtho-o-Toluidide adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Every lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance processes.

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 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	Orange to red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Ash Content	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Practically insoluble in water

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