Description

2H-Furo[3,4-B]Pyran-4,7(3H,5H)-Dione is a high-purity organic compound with the CAS number 484-91-3, serving as a versatile heterocyclic building block. This compound is valued for its unique fused furan-pyran-dione structure, which is critical for synthesizing complex molecules with specific biological and material properties. It is primarily sought by research and development teams in the pharmaceutical, agrochemical, and advanced materials sectors for use in medicinal chemistry, ligand synthesis, and as a precursor for novel functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds targeting specific enzyme pathways.
• Agrochemical Synthesis: Used as a building block for creating novel herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Material Science Research: Serves as a precursor in the development of organic electronic materials, dyes, and photoactive compounds.
• Academic & Industrial R&D: Employed in chemical libraries for high-throughput screening and structure-activity relationship (SAR) studies in medicinal chemistry.
• Ligand and Catalyst Development: Utilized to construct complex chelating ligands for metal-organic frameworks (MOFs) or homogeneous catalysis.
• Fine Chemical Production: Acts as an intermediate in the multi-step synthesis of specialty chemicals and flavors/fragrances.

Basic Information

Product Name	2H-Furo[3,4-B]Pyran-4,7(3H,5H)-Dione
CAS No.	484-91-3
Molecular Formula	C7H4O4
Molecular Weight	152.10 g/mol
Synonyms	4,7-Dioxo-4,7-dihydro-2H-furo[3,4-b]pyran; 2H-Furo[3,4-b]pyran-4,7-dione; 4,7-Dihydro-4,7-dioxofuro[3,4-b]pyran; 4,7(3H,5H)-Furo[3,4-b]pyrandione; Isobenzofuran-4,7-dione; 1,3-Isobenzofurandione (related); Phthalide (related structure); 484-91-3
EINECS	207-613-6

Quality Control

Every batch of 2H-Furo[3,4-B]Pyran-4,7(3H,5H)-Dione is manufactured under a strict quality management system. We provide comprehensive analytical documentation to ensure traceability and compliance with your research or production standards. A detailed Certificate of Analysis (COA) specifying purity, identity, and impurity profiles is available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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