Description

3,4-Dihydro-5-Methyl-2H-Pyran-4-Carboxylic Acid Ethyl Ester is a versatile heterocyclic ester building block of significant interest in advanced organic synthesis. Its value lies in its functionalized pyran ring structure, which serves as a key intermediate for constructing more complex molecules. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for applications in medicinal chemistry and the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its heterocyclic core.
• Fine Chemical Production: Acts as a specialized intermediate in the manufacture of complex flavors, fragrances, and other high-value fine chemicals.
• Academic & Industrial R&D: Employed in organic synthesis laboratories for method development and the construction of diverse heterocyclic libraries.
• Material Science Precursor: Investigated as a monomer or precursor for developing novel polymers and advanced functional materials.

Basic Information

Product Name	3,4-Dihydro-5-Methyl-2H-Pyran-4-Carboxylic Acid Ethyl Ester
CAS No.	38858-64-9
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	Ethyl 3,4-dihydro-5-methyl-2H-pyran-4-carboxylate; 4-Carbethoxy-5-methyl-3,4-dihydro-2H-pyran; 5-Methyl-3,4-dihydro-2H-pyran-4-carboxylic acid ethyl ester; 4-Ethoxycarbonyl-5-methyl-3,4-dihydro-2H-pyran; Ethyl 5-methyl-3,4-dihydro-2H-pyran-4-carboxylate; Dihydro-5-methyl-2H-pyran-4-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 3,4-Dihydro-5-Methyl-2H-Pyran-4-Carboxylic Acid Ethyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and quality assurance.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/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.