Description

1-[(2-Hydroxy-3,5-Dinitrophenyl)Azo]-2-Naphthol is a synthetic azo dye compound characterized by its distinct chromophoric structure. This product is valued for its strong colorant properties and its utility as a key intermediate in the synthesis of more complex dyes and pigments. It is primarily required by manufacturers in the dyes and pigments, textile, and specialty chemical industries for applications demanding specific color characteristics and chemical stability.

Application

• Primary Intermediate for Dye Synthesis: Serves as a crucial building block in the production of complex azo dyes and pigments.
• Textile Dyeing and Printing: Used in the coloration of natural and synthetic fibers, providing specific hue and fastness properties.
• Colorant for Industrial Products: Employed in the manufacturing of inks, paints, coatings, and plastics where stable coloration is required.
• Laboratory Reagent: Utilized in research and analytical chemistry as a chromogenic agent or a standard for method development.
• Specialty Chemical Manufacturing: Acts as a precursor in the synthesis of other functional chemicals where the azo group is integral.

Basic Information

Product Name	1-[(2-Hydroxy-3,5-Dinitrophenyl)Azo]-2-Naphthol
CAS No.	4998-82-7
Molecular Formula	C₁₆H₁₀N₄O₆
Molecular Weight	354.28 g/mol
Synonyms	1-[(2-Hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenol; C.I. 10385; C.I. Solvent Yellow 7; 2-Naphthol, 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-; Sudan Yellow G; Ceres Yellow GN; Azo Dye Yellow 7; Light Fast Yellow G
EINECS	225-662-3

Quality Control

Our production of 1-[(2-Hydroxy-3,5-Dinitrophenyl)Azo]-2-Naphthol adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters such as assay, melting point, and impurity profile to support your quality assurance processes. Specifications can be aligned with customer requirements for specific applications.

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 brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 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.