Description

4-Methyl-2H-Isoquinolin-1-One is a versatile heterocyclic organic compound that serves as a critical synthetic intermediate in advanced chemical manufacturing. Its unique isoquinolinone core structure makes it a valuable building block for constructing complex molecules with specific biological or material properties. This high-purity compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly those targeting neurological or oncological pathways.
• Agrochemical Research: Used in developing novel active ingredients for crop protection products, such as herbicides and fungicides.
• Organic Light-Emitting Diodes (OLEDs): Acts as a building block for electron-transport or host materials in organic electronic applications.
• Ligand Synthesis: Serves as a starting material for creating complex ligands used in catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Manufacturing: Intermediate for producing specialized colorants and fluorescent markers.
• Academic & Industrial R&D: Fundamental reagent for methodological studies in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	4-Methyl-2H-Isoquinolin-1-One
CAS No.	77077-83-9
Molecular Formula	C10H9NO
Molecular Weight	159.19 g/mol
Synonyms	4-Methyl-1(2H)-isoquinolinone; 4-Methylisoquinolin-1(2H)-one; 4-Methyl-2H-isoquinolin-1-one; 1-Isoquinolinol, 4-methyl-; 4-Methyl-1-isoquinolinol; 4-Methyl-1-hydroxyisoquinoline; 4-Methyl-1-oxo-1,2-dihydroisoquinoline
EINECS	Contact for details

Quality Control

Our 4-Methyl-2H-Isoquinolin-1-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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