Description

1,3-Dihydro-1-Oxo-5-Isobenzofurancarboxaldehyde is a versatile and high-value heterocyclic building block, specifically a phthalide derivative, essential for advanced organic synthesis. This compound matters for its role as a key precursor in the development of pharmaceuticals, agrochemicals, and functional materials, enabling the construction of complex molecular architectures. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with benzofuran or phthalide cores.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and plant growth regulators.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport materials or emissive layer components in electronic displays.
• Ligand and Catalyst Development: Utilized in the creation of specialized ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Manufacturing: Acts as an intermediate for synthesizing advanced colorants and fluorescent markers.
• Academic and Industrial Research: A valuable reagent for methodological development in organic chemistry and material science.

Basic Information

Product Name	1,3-Dihydro-1-Oxo-5-Isobenzofurancarboxaldehyde
CAS No.	333333-34-9
Molecular Formula	C9H6O3
Molecular Weight	162.14 g/mol
Synonyms	5-Formylphthalide; 5-Phthalidecarboxaldehyde; 1-Oxo-1,3-dihydroisobenzofuran-5-carbaldehyde; 5-Carboxyphthalide aldehyde; Isobenzofuran-5-carboxaldehyde, 1,3-dihydro-1-oxo-; 1,3-Dihydro-1-oxoisobenzofuran-5-carboxaldehyde; 5-Aldehydophthalide
EINECS	Contact for details

Quality Control

Our 1,3-Dihydro-1-Oxo-5-Isobenzofurancarboxaldehyde is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for GMP and research purposes.

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). This material is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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