Description

3-Pyridinecarboxylic Acid, 5-Ethyl-1,2-Dihydro-6-Hydroxy-4-Methyl-2-Oxo-, Ethyl Ester (9Ci) is a high-purity, synthetically derived pyridine derivative that serves as a critical advanced intermediate in modern organic synthesis. This compound is valued for its unique molecular scaffold, which enables the construction of complex heterocyclic systems with specific functionalization. It is primarily sought after by research institutions and pharmaceutical development teams for the synthesis of novel active pharmaceutical ingredients (APIs) and specialized fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Synthesis: Used in the creation of novel pesticides and herbicides, leveraging its heterocyclic structure for biological activity.
• Organic Synthesis Research: Serves as a versatile precursor for synthesizing complex pyridine and dihydropyridine derivatives in academic and industrial R&D laboratories.
• Ligand and Catalyst Development: Employed in the design of specialized ligands for metal catalysis and asymmetric synthesis.
• Material Science Precursor: Investigated for use in the synthesis of organic electronic materials and functional polymers.

Basic Information

Item	Details
Product Name	3-Pyridinecarboxylic Acid, 5-Ethyl-1,2-Dihydro-6-Hydroxy-4-Methyl-2-Oxo-, Ethyl Ester (9Ci)
CAS No.	500285-36-9
Molecular Formula	C12H15NO4
Molecular Weight	237.25 g/mol
Synonyms	5-Ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarboxylic acid ethyl ester; Ethyl 5-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinate; 5-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid ethyl ester; 2-Oxo-1,2-dihydropyridine-3-carboxylic acid, 5-ethyl-6-hydroxy-4-methyl-, ethyl ester; Ethyl 5-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate
EINECS	Contact for details

Quality Control

Our 3-Pyridinecarboxylic Acid, 5-Ethyl-1,2-Dihydro-6-Hydroxy-4-Methyl-2-Oxo-, Ethyl Ester (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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