Description

1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolinecarboxylic Acid Ethyl Ester is a high-purity, versatile quinoline derivative with significant synthetic utility. This compound serves as a critical pharmaceutical intermediate and a valuable building block in advanced organic synthesis. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various bioactive molecules, including potential drug candidates with anti-inflammatory, antimicrobial, or anticancer properties.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Building Block: Employed in the construction of complex heterocyclic compounds for material science and specialty chemistry applications.
• Research & Development: Serves as a standard or starting material in academic and industrial R&D labs for method development and exploratory chemistry.
• Ligand and Catalyst Preparation: Utilized in the preparation of specialized ligands for metal complexes and catalysts used in asymmetric synthesis.
• Dye and Pigment Intermediate: Acts as a precursor in the synthesis of quinoline-based dyes and functional pigments.

Basic Information

Product Name	1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolinecarboxylic Acid Ethyl Ester
CAS No.	40059-53-8
Molecular Formula	C₁₂H₁₁NO₄
Molecular Weight	233.22 g/mol
Synonyms	Ethyl 1,2-dihydro-4-hydroxy-2-oxoquinoline-3-carboxylate; Ethyl 4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylate; 4-Hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid ethyl ester; 3-Carbethoxy-4-hydroxy-1,2-dihydro-2-quinolone; 3-Carbethoxy-4-hydroxycarbostyril; 4-Hydroxy-3-quinolinecarboxylic acid ethyl ester, 1,2-dihydro-2-oxo-; A-46745; NSC 339586
EINECS	Contact for details

Quality Control

Our 1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolinecarboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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