Description

3,6-Dihydro-4,5-Dimethyl-2H-Pyran-2,2-Dicarboxylic Acid Diethyl Ester is a specialized dihydropyran derivative that serves as a versatile and valuable synthetic intermediate in advanced organic chemistry. Its unique structure, featuring a fused ring system with two ester functionalities, makes it a critical building block for constructing complex molecular architectures. This compound is primarily sought after by research institutions and industrial R&D departments engaged in the development of pharmaceuticals, agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with heterocyclic cores.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Serves as a starting material for creating chiral ligands and organocatalysts used in asymmetric synthesis.
• Material Science Research: Employed in the development of specialty polymers, resins, and advanced organic electronic materials.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic synthesis, including cycloaddition and ring-opening reactions.
• Flavor & Fragrance Industry: Potential intermediate for the synthesis of complex odorants and flavoring agents with pyran-based structures.

Basic Information

Product Name	3,6-Dihydro-4,5-Dimethyl-2H-Pyran-2,2-Dicarboxylic Acid Diethyl Ester
CAS No.	24588-60-1
Molecular Formula	C13H20O6
Molecular Weight	272.29 g/mol
Synonyms	Diethyl 3,6-dihydro-4,5-dimethyl-2H-pyran-2,2-dicarboxylate; 2H-Pyran-2,2-dicarboxylic acid, 3,6-dihydro-4,5-dimethyl-, diethyl ester; Diethyl 4,5-dimethyl-3,6-dihydro-2H-pyran-2,2-dicarboxylate; 4,5-Dimethyl-3,6-dihydro-2H-pyran-2,2-dicarboxylic acid diethyl ester
EINECS	Contact for details

Quality Control

Our 3,6-Dihydro-4,5-Dimethyl-2H-Pyran-2,2-Dicarboxylic Acid Diethyl Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and scale-up applications. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing purity, identity, and impurity profiles. Our quality management system is designed to meet the stringent requirements of cGMP and ISO standards where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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