Description

3-Pyridinecarboxylic Acid, 5-[(2,4-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. This compound is valued for its precise molecular architecture, which is critical for synthesizing high-performance colorants and functional materials. It is primarily required by R&D laboratories and manufacturers in the fine chemical, advanced pigment, and specialty dye industries for developing novel products.

Application

• Key Intermediate for High-Performance Azo Dyes & Pigments: Serves as a critical building block in the synthesis of complex, color-fast azo dyes used in textiles, inks, and coatings.
• Research & Development of Functional Materials: Used in academic and industrial R&D for exploring new organic semiconductors, non-linear optical materials, or photochromic compounds.
• Specialty Chemical Synthesis: Employed in the multi-step synthesis of pharmacologically active molecules or other complex heterocyclic compounds.
• Analytical Chemistry & Chromatography: May be utilized as a standard or reference material in analytical method development due to its distinct structure.

Basic Information

Item	Detail
Product Name	3-Pyridinecarboxylic Acid, 5-[(2,4-Dichlorophenyl)Azo]-1,2-Dihydro-4,6-Dihydroxy-2-Oxo-1-Phenyl-, Methyl Ester (9Ci)
CAS No.	888320-76-1
Molecular Formula	C20H14Cl2N4O5
Molecular Weight	461.26 g/mol
Synonyms	Methyl 5-[(2,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylate; 5-[(2,4-Dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylic acid methyl ester; Azo dye intermediate 888320-76-1; 3-Pyridinecarboxylic acid, 5-[(2,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-, methyl ester (9CI); 1-Phenyl-5-[(2,4-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-3-pyridinecarboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is characterized using advanced analytical techniques to confirm identity and purity. Certificates of Analysis (COA) detailing specific batch results 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 (typically 15-25°C). This compound is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Solid powder (Color to be confirmed per batch)
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical)
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm

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