Description

Ethyl 5,7-Dihydro-4H-Thieno[2,3-C]Pyran-3-Carboxylate is a high-purity organic compound belonging to the thienopyran class, serving as a critical advanced intermediate in modern synthetic chemistry. Its value lies in its unique fused heterocyclic structure, which provides a versatile scaffold for constructing complex molecules with targeted biological or material properties. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and metabolic disorder targets.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides due to its bioactive heterocyclic core.
• Material Science Precursor: Serves as a monomer or precursor for organic electronic materials, such as organic semiconductors or light-emitting materials.
• Chemical Biology Probe Synthesis: Employed to create molecular probes for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects requiring complex, multi-step organic transformations.

Basic Information

Product Name	Ethyl 5,7-Dihydro-4H-Thieno[2,3-C]Pyran-3-Carboxylate
CAS No.	1169491-11-5
Molecular Formula	C10H12O3S
Molecular Weight	212.27 g/mol
Synonyms	Ethyl 5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate; 5,7-Dihydro-4H-thieno[2,3-c]pyran-3-carboxylic acid ethyl ester; 4H-Thieno[2,3-c]pyran-3-carboxylic acid, 5,7-dihydro-, ethyl ester; Thieno[2,3-c]pyran-3-carboxylate derivative; CAS 1169491-11-5
EINECS	Contact for details

Quality Control

Our Ethyl 5,7-Dihydro-4H-Thieno[2,3-C]Pyran-3-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and commercial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment and are available upon request.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.