Description

2,6-Benzofurandione, 7,7A-Dihydro-, (7As)- is a specialized chiral organic compound with the CAS registry number 443923-82-8, serving as a valuable synthetic intermediate. Its unique fused bicyclic structure and defined stereochemistry make it a critical building block for the synthesis of complex, biologically active molecules. This high-purity intermediate is essential for research and development in the pharmaceutical and advanced agrochemical sectors, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, where its specific stereochemistry can influence biological activity.
• Organic Synthesis & Research: Serves as a versatile starting material or intermediate in academic and industrial organic chemistry research for constructing fused-ring systems.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, dyes, and performance materials that require its distinct benzofurandione core.

Basic Information

Product Name	2,6-Benzofurandione, 7,7A-Dihydro-, (7As)-
CAS No.	443923-82-8
Molecular Formula	C8H6O3
Molecular Weight	150.13 g/mol
Synonyms	(7aS)-7,7a-Dihydro-2,6-benzofurandione; (7aS)-7,7a-Dihydro-2H-furo[3,2-g][1]benzopyran-2,6-dione; 7,7a-Dihydro-2,6-benzofurandione, (7aS)-; 2H-Furo[3,2-g][1]benzopyran-2,6-dione, 7,7a-dihydro-, (7aS)-; (7aS)-7,7a-Dihydro-2H-furo[3,2-g]chromene-2,6-dione; Chiral Benzofurandione Derivative
EINECS	Contact for details

Quality Control

Our 2,6-Benzofurandione, 7,7A-Dihydro-, (7As)- is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis, to ensure it meets the high standards required for advanced synthetic applications. A Certificate of Analysis (COA) detailing identity, purity, chiral excess, and impurity profiles is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 1.5%

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