Description

3-Pyridinecarboxylic Acid, 5-[(3,4-Dichlorophenyl)Azo]-1,2-Dihydro-4,6-Dihydroxy-2-Oxo-1-Phenyl-, Methyl Ester (9Ci) is a specialized azo dye intermediate with a complex heterocyclic structure, identified by CAS NO 888320-75-0. This compound is valued for its role as a precise chemical building block in the synthesis of high-performance colorants and functional materials. It is primarily required by R&D laboratories and manufacturers in the advanced pigments, dyes, and specialty chemical sectors seeking to develop products with specific optical or electronic properties.

Application

This advanced chemical intermediate serves critical functions in several high-tech industries:

• Specialty Dye and Pigment Synthesis: As a key precursor for creating complex azo dyes with enhanced color fastness, thermal stability, and specific hue properties.
• Functional Material Research: Used in the development of organic semiconductors, nonlinear optical materials, and photoresponsive compounds due to its conjugated azo and pyridine structure.
• Analytical Chemistry: May serve as a reagent or a standard in chromatographic analysis and method development for related compound classes.
• Pharmaceutical Intermediates: Potential use in the research phase for synthesizing novel pharmacologically active molecules containing azopyridine motifs.
• Liquid Crystal and Display Technology: Investigated for incorporation into dye-based liquid crystal systems or color filters for display applications.

Basic Information

Product Name	3-Pyridinecarboxylic Acid, 5-[(3,4-Dichlorophenyl)Azo]-1,2-Dihydro-4,6-Dihydroxy-2-Oxo-1-Phenyl-, Methyl Ester (9Ci)
CAS No.	888320-75-0
Molecular Formula	C20H15Cl2N3O5
Molecular Weight	448.26 g/mol
Synonyms	Methyl 5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylate; 5-[(3,4-Dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylic acid methyl ester; Azo pyridine dye intermediate; 3-Pyridinecarboxylic acid, 5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-, methyl ester; 888320-75-0; 1-Phenyl-5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-3-pyridinecarboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and purity for sensitive synthesis applications. Quality is verified through analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment 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 a controlled room temperature (typically 15-25°C). This compound may be light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Solid powder (Color to be specified)
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 95% (Typical 97-99%)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 5.0%

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