Description

3-Pyridinecarboxylic Acid, 1,2-Dihydro-4,6-Dihydroxy-5-[(4-Methyl-3-Nitrophenyl)Azo]-2-Oxo-1-Phenyl-, Methyl Ester (9Ci) is a specialized azo dye intermediate with a complex heterocyclic structure. This compound matters for its role as a precise chemical building block in the synthesis of high-performance pigments and dyes, offering specific chromophoric properties. It is primarily needed by manufacturers in the fine chemicals, advanced material science, and research sectors, particularly those developing colorants for niche industrial applications.

Application

• Key intermediate in the synthesis of high-performance azo pigments and dyes for industrial coatings and plastics.
• Precursor for research and development of novel functional colorants with specific light-fastness and thermal stability properties.
• Specialized reagent in material science for developing color-changing sensors or advanced polymeric materials.
• Building block for fine chemical synthesis in pharmaceutical and agrochemical research where specific aromatic systems are required.
• Used in analytical chemistry as a standard or reference compound for method development and calibration.

Basic Information

Product Name	3-Pyridinecarboxylic Acid, 1,2-Dihydro-4,6-Dihydroxy-5-[(4-Methyl-3-Nitrophenyl)Azo]-2-Oxo-1-Phenyl-, Methyl Ester (9Ci)
CAS No.	888320-73-8
Molecular Formula	C20H16N4O6
Molecular Weight	408.37 g/mol
Synonyms	Methyl 1,2-dihydro-4,6-dihydroxy-5-[(4-methyl-3-nitrophenyl)azo]-2-oxo-1-phenyl-3-pyridinecarboxylate; 1,2-Dihydro-4,6-dihydroxy-5-[(4-methyl-3-nitrophenyl)azo]-2-oxo-1-phenyl-3-pyridinecarboxylic acid methyl ester; Azo dye intermediate 888320-73-8; 3-Pyridinecarboxylic acid, 1,2-dihydro-4,6-dihydroxy-5-[(4-methyl-3-nitrophenyl)azo]-2-oxo-1-phenyl-, methyl ester (9CI)
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, purity, and consistency. Certificates of Analysis (COA) detailing specific test results are available upon request 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 controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Solid powder
Color	Characteristic
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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