Description

5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One is a high-purity, heterocyclic organic compound belonging to the thienopyrimidinone class, serving as a critical advanced pharmaceutical intermediate. Its value lies in its role as a sophisticated building block for the synthesis of novel active pharmaceutical ingredients (APIs) and other fine chemicals. This product is essential for research and development scientists and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new therapeutic agents or functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the research and synthesis of novel drug candidates, particularly in therapeutic areas targeting kinases and other enzymatic pathways.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its heterocyclic core for biological activity.
• Material Science: Serves as a building block for organic electronic materials, such as organic semiconductors or light-emitting diodes (OLEDs), due to its fused aromatic structure.
• Biochemical Tool Compound: Employed in life science research as a probe or inhibitor to study specific biological mechanisms and pathways.
• Fine Chemical Synthesis: Utilized in custom synthesis and contract manufacturing for producing complex, high-value specialty chemicals.

Basic Information

Product Name	5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	17537-76-7
Molecular Formula	C₁₃H₁₀N₂O₂S
Molecular Weight	258.30 g/mol
Synonyms	5-(4-Methoxyphenyl)-3,4-dihydrothieno[2,3-d]pyrimidin-4-one; 4(3H)-Thieno[2,3-d]pyrimidinone, 5-(4-methoxyphenyl)-; 5-(p-Methoxyphenyl)thieno[2,3-d]pyrimidin-4(3H)-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 5-(4-methoxyphenyl)-; 17537-76-7; 5-(4-Methoxyphenyl)-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine
EINECS	Contact for details

Quality Control

Our 5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider conditions under an inert atmosphere to ensure maximum stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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