Description

3-Hydroxy-4-[(2-Methyl-5-Nitrophenyl)Azo]-2-Naphthoic Acid is a specialized azo dye intermediate known for its distinct chromophoric properties. This compound is critical for synthesizing high-performance pigments and dyes that require excellent lightfastness and color strength. It is primarily utilized by manufacturers in the pigments, advanced materials, and research and development sectors seeking reliable and consistent quality for their formulations.

Application

• Primary Intermediate for High-Performance Pigments: Serves as a key building block in the synthesis of organic pigments, particularly for applications demanding durability.
• Specialty Dye Manufacturing: Used in the production of azo dyes for industrial coloring, inks, and coatings.
• Research & Development (R&D): Employed in chemical research for developing new chromophores and studying azo coupling reactions.
• Functional Materials: Potential applications in the development of advanced materials, such as dyes for optical data storage or non-linear optics.
• Analytical Chemistry: May be used as a reagent or standard in analytical methods.

Basic Information

Product Name	3-Hydroxy-4-[(2-Methyl-5-Nitrophenyl)Azo]-2-Naphthoic Acid
CAS No.	68959-32-0
Molecular Formula	C18H13N3O5
Molecular Weight	351.31 g/mol
Synonyms	3-Hydroxy-4-[(2-methyl-5-nitrophenyl)azo]-2-naphthalenecarboxylic acid; 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(2-methyl-5-nitrophenyl)azo]-; C.I. Pigment Red 269; Azo dye intermediate PR269; 3-Hydroxy-4-(2-methyl-5-nitrophenylazo)naphthalene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-Hydroxy-4-[(2-Methyl-5-Nitrophenyl)Azo]-2-Naphthoic Acid is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and batch-to-batch reliability suitable for industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 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.