Description

5H-Thieno[2,3-C]Pyran-3-Carboxylic Acid, 4,7-Dihydro- is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is crucial for the synthesis of novel active pharmaceutical ingredients (APIs) and complex organic molecules due to its unique fused thienopyran scaffold. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for drug discovery and process development programs.

Application

• Pharmaceutical Intermediate: Key building block for the research and synthesis of new therapeutic agents, particularly in medicinal chemistry.
• Organic Synthesis Reagent: Used in the construction of complex heterocyclic compounds for academic and industrial research.
• Agrochemical Research: Serves as a precursor in the development of new crop protection agents and pesticides.
• Material Science: Potential monomer or precursor for the development of specialty polymers and advanced organic materials.
• Chemical Reference Standard: Used as an analytical standard for quality control and method development in laboratories.

Basic Information

Product Name	5H-Thieno[2,3-C]Pyran-3-Carboxylic Acid, 4,7-Dihydro-
CAS No.	1169491-14-8
Molecular Formula	C8H6O3S
Molecular Weight	182.20 g/mol
Synonyms	4,7-Dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid; 5H-Thieno[2,3-c]pyran-3-carboxylic acid, 4,7-dihydro-; Thieno[2,3-c]pyran-3-carboxylic acid, 4,7-dihydro-5H-; 1169491-14-8; 4,7-Dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid (ACI); Dihydrothienopyran carboxylic acid
EINECS	Contact for details

Quality Control

Our 5H-Thieno[2,3-C]Pyran-3-Carboxylic Acid, 4,7-Dihydro- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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