Description

1H,6H-Pyrano[3,4-C]Pyran-1,6-Dione,5-Ethyl-3,4,5,8-Tetrahydro-5-Hydroxy-,(5S)-(9Ci) is a high-purity, stereochemically defined heterocyclic compound serving as a critical advanced intermediate in complex organic syntheses. Its unique fused pyran-dione structure makes it a valuable building block for pharmaceutical research and the development of novel active ingredients. This compound is essential for R&D chemists and process development scientists working in medicinal chemistry, agrochemicals, and fine chemical manufacturing who require reliable access to high-quality, structurally complex intermediates.

Application

• Pharmaceutical Intermediate: Key chiral building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Medicinal Chemistry Research: Used in lead optimization and structure-activity relationship (SAR) studies to explore new chemical entities.
• Agrochemical Synthesis: Intermediate in the development of new pesticides or herbicides with specific activity profiles.
• Fine Chemical Production: Serves as a precursor in the multi-step synthesis of specialty chemicals, flavors, or fragrances.
• Academic & Institutional R&D: Utilized in universities and research institutes for methodological development in organic synthesis and catalysis.
• Process Chemistry Development: Employed in scaling up synthetic routes from laboratory to pilot plant scale for commercial production.

Basic Information

Product Name	1H,6H-Pyrano[3,4-C]Pyran-1,6-Dione,5-Ethyl-3,4,5,8-Tetrahydro-5-Hydroxy-,(5S)-(9Ci)
CAS No.	639858-13-2
Molecular Formula	C₁₀H₁₂O₅
Molecular Weight	212.20 g/mol
Synonyms	(5S)-5-Ethyl-3,4,5,8-tetrahydro-5-hydroxy-1H,6H-pyrano[3,4-c]pyran-1,6-dione; 5-Ethyl-3,4,5,8-tetrahydro-5-hydroxy-1H,6H-pyrano[3,4-c]pyran-1,6-dione, (5S)-; 5-Ethyl-5-hydroxy-3,4,5,8-tetrahydro-1H,6H-pyrano[3,4-c]pyran-1,6-dione; Fused Pyran-Dione Derivative; Chiral Pyranone Intermediate; SCHEMBL23883027
EINECS	Contact for details

Quality Control

Our 1H,6H-Pyrano[3,4-C]Pyran-1,6-Dione,5-Ethyl-3,4,5,8-Tetrahydro-5-Hydroxy-,(5S)-(9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, chiral purity, and impurity profiles. We support cGMP standards for advanced pharmaceutical intermediates and can provide material for regulatory filings upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The container should be kept tightly sealed in a dry environment to minimize exposure to moisture. For long-term storage, consider inert gas purging.

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)	≤ 2.0%

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