Description

2-Methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid (Saltdata: Free) is a high-purity, versatile heterocyclic carboxylic acid building block essential for advanced organic synthesis. This compound matters for its role as a critical intermediate in the development of complex molecules, particularly within the pharmaceutical sector. It is primarily needed by research chemists and process development scientists in pharmaceutical, agrochemical, and fine chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those targeting neurological or oncological pathways.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its fused isoquinoline structure.
• Fine Chemical Building Block: Employed in the preparation of complex dyes, pigments, and specialty polymers requiring specific heterocyclic motifs.
• Academic & Contract Research: Serves as a valuable starting material for methodological studies and library synthesis in academic and industrial R&D laboratories.
• Ligand and Catalyst Development: The carboxylic acid and heterocyclic nitrogen atoms make it a candidate for designing new chelating ligands or organocatalysts.

Basic Information

Product Name	2-Methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid (Saltdata: Free)
CAS No.	54931-62-3
Molecular Formula	C11H9NO3
Molecular Weight	203.19 g/mol
Synonyms	2-Methyl-1,2-dihydroisoquinoline-1-one-4-carboxylic Acid; 4-Carboxy-2-methyl-1,2-dihydroisoquinolin-1-one; 2-Methyl-1-oxo-1H-isoquinoline-4-carboxylic Acid; 1,2-Dihydro-2-methyl-1-oxo-4-isoquinolinecarboxylic Acid; 2-Methyl-1-oxo-1,2-dihydro-4-isoquinolinecarboxylic Acid; 2-Methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylate (Free Acid); 54931-62-3 (CAS Name)
EINECS	Contact for details

Quality Control

Our 2-Methyl-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

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 nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

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

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