Description

5-(5-Methyl-2-Thienyl)Thieno[2,3-D]Pyrimidin-4-One, 97% is a high-purity heterocyclic organic compound featuring a fused thienopyrimidinone core, a key structural motif in advanced pharmaceutical and materials chemistry. This compound is valued for its role as a versatile chemical building block and pharmacological intermediate in the research and development of novel active substances. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of potential drug candidates, particularly for kinase inhibitors and other targeted therapies.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its heterocyclic scaffold.
• Organic Electronic Materials: Investigated as a building block for novel organic semiconductors and conductive polymers due to its electron-rich thiophene and pyrimidine units.
• Chemical Biology Probe Development: Employed in the design and synthesis of molecular probes for studying biological pathways and target validation.
• Academic & Institutional Research: Utilized in universities and research institutes for methodological studies in heterocyclic and medicinal chemistry.
• Custom Synthesis & Contract Manufacturing: A key starting material for custom synthesis projects and scale-up processes under cGMP or ISO standards.

Basic Information

Product Name	5-(5-Methyl-2-Thienyl)Thieno[2,3-D]Pyrimidin-4-One, 97%
CAS No.	851116-03-5
Molecular Formula	C11H8N2OS2
Molecular Weight	248.32 g/mol
Synonyms	4H-Thieno[2,3-d]pyrimidin-4-one, 5-(5-methyl-2-thienyl)-; 5-(5-Methylthiophen-2-yl)thieno[2,3-d]pyrimidin-4(3H)-one; Thieno[2,3-d]pyrimidin-4-one, 5-(5-methyl-2-thienyl)-; 851116-03-5; 5-(5-Methyl-2-thienyl)-4H-thieno[2,3-d]pyrimidin-4-one; 5-(5-Methyl-2-thienyl)thieno[2,3-d]pyrimidin-4(3H)-one
EINECS	Contact for details

Quality Control

Every batch of our 5-(5-Methyl-2-Thienyl)Thieno[2,3-D]Pyrimidin-4-One is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the specified 97% minimum purity and is suitable for its intended research and development applications. A detailed Certificate of Analysis (COA) is supplied with each shipment, confirming identity, purity, and impurity profile as determined by advanced chromatographic and spectroscopic methods.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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