Description

5-Quinolinecarboxylic Acid, 3-Methyl-8-(Methylsulfonyl)- is a high-purity, functionalized quinoline derivative that serves as a critical advanced intermediate in modern organic synthesis. Its unique sulfonyl and carboxylic acid functionalities make it a valuable building block for constructing complex molecular architectures with specific electronic and steric properties. This compound is primarily sought after by research institutions and pharmaceutical development companies engaged in the discovery of novel active pharmaceutical ingredients (APIs) and specialty agrochemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new drug candidates, particularly in medicinal chemistry programs targeting heterocyclic compounds.
• Agrochemical Synthesis: Used in the creation of advanced crop protection agents and herbicides, leveraging its quinoline core for biological activity.
• Material Science Research: Serves as a precursor for functional organic materials, such as ligands for catalysts or components in organic electronic devices.
• Chemical Reference Standard: Employed as a high-purity analytical standard for method development and quality control in laboratories.
• Academic & Industrial R&D: Utilized in exploratory chemistry for synthesizing novel heterocyclic libraries and studying structure-activity relationships (SAR).

Basic Information

Product Name	5-Quinolinecarboxylic Acid, 3-Methyl-8-(Methylsulfonyl)-
CAS No.	204783-08-4
Molecular Formula	C12H11NO4S
Molecular Weight	265.29 g/mol
Synonyms	3-Methyl-8-(methylsulfonyl)quinoline-5-carboxylic acid; 8-Methanesulfonyl-3-methyl-quinoline-5-carboxylic acid; 3-Methyl-8-(methylsulfonyl)-5-quinolinecarboxylic acid; 5-Quinolinecarboxylic acid, 3-methyl-8-(methylsulfonyl)-; 204783-08-4; 3-Methyl-8-(methylsulphonyl)quinoline-5-carboxylic acid; 8-Methylsulfonyl-3-methylquinoline-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-Quinolinecarboxylic Acid, 3-Methyl-8-(Methylsulfonyl)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our commitment to reliable supply and traceable documentation supports your R&D and scale-up processes.

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 strong oxidizing agents and strong bases. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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