Description

4-Hydroxy-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid is a high-purity, versatile quinoline derivative that serves as a critical building block in advanced organic synthesis. Its unique molecular structure makes it a valuable precursor for developing active pharmaceutical ingredients (APIs) and specialty fine chemicals. This compound is essential for research and manufacturing organizations in the pharmaceutical, agrochemical, and material science sectors seeking reliable, high-quality intermediates for complex synthesis pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various quinoline-based drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport materials and emissive layer components in display technologies.
• Coordination Chemistry & Chelating Agents: Acts as a ligand for metal ions, useful in catalysis and the preparation of metal-organic frameworks (MOFs).
• Dye & Pigment Manufacturing: Employed in the synthesis of specialized quinophthalone dyes and high-performance pigments.
• Research & Development: A valuable standard and starting material in academic and industrial R&D for exploring new chemical entities and reaction methodologies.

Basic Information

Product Name	4-Hydroxy-2-oxo-1,2-dihydro-quinoline-3-carboxylic Acid
CAS No.	72963-93-0
Molecular Formula	C10H7NO4
Molecular Weight	205.17 g/mol
Synonyms	4-Hydroxy-1,2-dihydro-2-oxoquinoline-3-carboxylic acid; 4-Hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid; 3-Carboxy-4-hydroxy-1,2-dihydro-2-oxoquinoline; 4-Hydroxy-2-oxo-1H-quinoline-3-carboxylic acid; 1,2-Dihydro-4-hydroxy-2-oxoquinoline-3-carboxylic acid; Quinoline-3-carboxylic acid, 1,2-dihydro-4-hydroxy-2-oxo-; 4-Hydroxycarbostyril-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets exacting specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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