Description

3-Quinolinecarboxylic Acid, 1,2-Dihydro-4-Hydroxy-5-Methoxy-1-Methyl-2-Oxo- is a high-purity, synthetically derived quinoline derivative with a complex, multi-functional molecular structure. This compound serves as a critical advanced pharmaceutical intermediate (API) and a versatile building block in organic synthesis, enabling the development of novel compounds with targeted biological activity. It is primarily required by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for creating new active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-infectives, and other therapeutic areas.
• Agrochemical Research: Used as a building block for developing new generation pesticides, herbicides, and plant growth regulators with enhanced efficacy.
• Organic Synthesis & Material Science: Serves as a versatile scaffold for constructing complex heterocyclic compounds and functionalized materials for electronic or optical applications.
• Biochemical Research: Employed in the study of enzyme inhibitors and receptor ligands due to its quinoline core, which is prevalent in many biologically active molecules.
• Fine Chemical Production: Utilized in the manufacture of specialty dyes, pigments, and complex fragrance compounds.

Basic Information

Product Name	3-Quinolinecarboxylic Acid, 1,2-Dihydro-4-Hydroxy-5-Methoxy-1-Methyl-2-Oxo-
CAS No.	248282-18-0
Molecular Formula	C₁₂H₁₁NO₅
Molecular Weight	249.22 g/mol
Synonyms	1,2-Dihydro-4-hydroxy-5-methoxy-1-methyl-2-oxo-3-quinolinecarboxylic acid; 4-Hydroxy-5-methoxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylic acid; 3-Carboxy-4-hydroxy-5-methoxy-1-methyl-2(1H)-quinolinone; 1-Methyl-4-hydroxy-5-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic Acid; Quinoline-3-carboxylic acid derivative
EINECS	Contact for details

Quality Control

Our production of 3-Quinolinecarboxylic Acid, 1,2-Dihydro-4-Hydroxy-5-Methoxy-1-Methyl-2-Oxo- adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available upon request, detailing all critical quality attributes to support your regulatory and R&D requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%

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