Description

3-Pyridinecarboxylic Acid, 5-[(2,5-Dichlorophenyl)Azo]-1,2-Dihydro-4,6-Dihydroxy-2-Oxo-1-Phenyl-, Methyl Ester (9Ci) is a specialized azo dye intermediate with a complex pyridine-based structure. This compound matters for its role as a precise chemical building block in the synthesis of high-performance colorants and functional materials. It is primarily needed by research and development laboratories and industrial manufacturers in the pigments, dyes, and advanced material science sectors. The product is supplied with the CAS number 888320-74-9.

Application

• Precursor for High-Performance Pigments: Serves as a key intermediate in the synthesis of complex organic pigments, particularly azo pigments, offering potential for specific color shades and properties.
• Specialty Dye Manufacturing: Used in research and production of specialized dyes for niche applications requiring specific lightfastness or chemical resistance.
• Research & Development: Employed in academic and industrial R&D settings for exploring new chromophores, studying structure-property relationships in dye chemistry, and developing novel functional materials.
• Material Science Applications: Investigated for use in the development of advanced materials, such as dyes for non-linear optics (NLO) or as molecular components in sensor technologies.
• Chemical Synthesis Intermediate: Functions as a versatile building block in multi-step organic synthesis for creating more complex heterocyclic compounds.

Basic Information

Item	Details
Product Name	3-Pyridinecarboxylic Acid, 5-[(2,5-Dichlorophenyl)Azo]-1,2-Dihydro-4,6-Dihydroxy-2-Oxo-1-Phenyl-, Methyl Ester (9Ci)
CAS No.	888320-74-9
Molecular Formula	C20H13Cl2N3O5
Molecular Weight	446.24 g/mol
Synonyms	Methyl 5-[(2,5-dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylate; 5-[(2,5-Dichlorophenyl)azo]-1,2-dihydro-4,6-dihydroxy-2-oxo-1-phenyl-3-pyridinecarboxylic acid methyl ester; Azo dye intermediate 888320-74-9; Pyridine azo dye derivative; 1-Phenyl-5-[(2,5-dichlorophenyl)azo]barbituric acid methyl ester derivative
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. While this is a specialty intermediate, quality is assured through analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. Certificates of Analysis (COA) detailing lot-specific 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 material is light-sensitive and should be handled and stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Solid powder (Color to be confirmed per batch)
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical, higher grades available)
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.