Description

1-Oxo-1H-Isochromene-4-Carboxylic Acid Methyl Ester is a high-value heterocyclic building block and synthetic intermediate of significant interest in advanced organic synthesis. Its unique fused isochromene-lactone structure makes it a versatile precursor for constructing complex molecular architectures. This compound is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for compounds with fused heterocyclic cores.
• Agrochemical Synthesis: Used in the synthesis of novel herbicides, fungicides, and insecticides, leveraging its reactive ester and lactone functionalities.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a building block for electron-transport or emissive layer materials in advanced display technologies.
• Ligand and Catalyst Development: Employed in the preparation of specialized chelating ligands or organocatalysts for asymmetric synthesis.
• Dye and Pigment Chemistry: Acts as a precursor for the synthesis of specialized chromophores and functional dyes.
• Academic and Industrial Research: A valuable reagent for methodological studies in organic chemistry and the exploration of new chemical reactions.

Basic Information

Product Name	1-Oxo-1H-Isochromene-4-Carboxylic Acid Methyl Ester
CAS No.	34014-46-5
Molecular Formula	C12H10O4
Molecular Weight	218.21 g/mol
Synonyms	Methyl 1-oxo-1H-isochromene-4-carboxylate; 4-Methoxycarbonyl-1H-isochromen-1-one; 1H-Isochromene-4-carboxylic acid, 1-oxo-, methyl ester; Methyl 1-oxoisochromene-4-carboxylate; 1-Oxo-1H-2-benzopyran-4-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of 1-Oxo-1H-Isochromene-4-Carboxylic Acid Methyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and industrial use. We employ advanced analytical techniques, including HPLC, GC, and NMR, for comprehensive characterization. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.