Description

6-Ethyl-2-Mercapto-3-Propylthieno[2,3-D]Pyrimidin-4(3H)-One is a high-purity heterocyclic organic compound with the CAS number 744242-00-0, serving as a critical advanced intermediate in modern chemical synthesis. Its unique fused thienopyrimidine structure makes it a valuable building block for developing novel active pharmaceutical ingredients (APIs) and functional materials. This product is essential for research and development laboratories, pharmaceutical manufacturers, and agrochemical companies seeking to create new molecules with targeted biological or material properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Research: Used in the development of new pesticides and herbicides, where the thienopyrimidine core can contribute to specific biological activity.
• Material Science: Serves as a building block for organic electronic materials, such as semiconductors or light-emitting components, due to its conjugated system.
• Chemical Synthesis: Employed as a versatile intermediate in organic chemistry for constructing more complex molecular architectures in academic and industrial R&D.
• Bioconjugation & Probe Development: The reactive mercapto group allows for use in creating labeled compounds or probes for biochemical and diagnostic applications.

Basic Information

Product Name	6-Ethyl-2-Mercapto-3-Propylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	744242-00-0
Molecular Formula	C11H14N2OS2
Molecular Weight	254.37 g/mol
Synonyms	6-Ethyl-2-mercapto-3-propyl-3,4-dihydrothieno[2,3-d]pyrimidin-4-one; 3-Propyl-6-ethyl-2-sulfanylidene-1H-thieno[2,3-d]pyrimidin-4-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 6-ethyl-2-mercapto-3-propyl-; 744242-00-0; 6-Ethyl-3-propyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one
EINECS	Contact for details

Quality Control

Every batch of 6-Ethyl-2-Mercapto-3-Propylthieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management systems and undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, related substances, and residual solvents. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliable supply and traceability for critical R&D and production applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be handled under an inert atmosphere for long-term storage. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.