Description

cis-3,5-Dimethyldihydro-2H-Pyran-2,6(3H)-Dione is a high-purity, specialized lactone derivative with significant utility as a versatile chemical intermediate. Its unique bicyclic structure makes it a valuable building block for synthesizing complex molecules in advanced research and development. This compound is essential for pharmaceutical chemists, agrochemical researchers, and material scientists seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of complex drug candidates, particularly in developing central nervous system (CNS) agents and anti-inflammatory compounds.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of advanced pesticides and herbicides, leveraging its reactive carbonyl groups for structural diversification.
• Fine Chemical Production: Used in the preparation of specialty chemicals, including flavors, fragrances, and advanced polymer modifiers.
• Academic & Industrial R&D: A valuable scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Material Science: Potential monomer or cross-linking agent in the development of specialty polymers with tailored thermal or mechanical properties.

Basic Information

Product Name	cis-3,5-Dimethyldihydro-2H-Pyran-2,6(3H)-Dione
CAS No.	4295-92-5
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	3,5-Dimethyl-4,5-dihydro-2H-pyran-2,6(3H)-dione; 3,5-Dimethyldihydro-2H-pyran-2,6-dione; cis-3,5-Dimethyl-4,5-dihydro-2H-pyran-2,6(3H)-dione; 2H-Pyran-2,6(3H)-dione, 3,5-dimethyldihydro-; 3,5-Dimethyl-4,5-dihydro-2H-pyran-2,6-dione; 3,5-Dimethyl-4,5-dihydro-2H-pyran-2,6(3H)-dione, cis-; 3,5-Dimethyl-4,5-dihydro-2H-pyran-2,6-dione (cis)
EINECS	Contact for details

Quality Control

Our cis-3,5-Dimethyldihydro-2H-Pyran-2,6(3H)-Dione is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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