Description

2-(Chloromethyl)-5-(4-Chlorophenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One is a high-purity, heterocyclic organic compound that serves as a critical advanced intermediate in modern pharmaceutical synthesis. Its unique fused thienopyrimidine core, functionalized with reactive chloromethyl and chlorophenyl groups, makes it a versatile building block for constructing complex bioactive molecules. This compound is primarily sought after by research institutions and pharmaceutical manufacturers engaged in the development of novel therapeutic agents, particularly in areas requiring sophisticated heterocyclic scaffolds.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of potential drug candidates, especially those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its heterocyclic structure.
• Chemical Biology Probes: Serves as a core structure for creating molecular probes to study biological processes and protein interactions.
• Material Science Research: Investigated as a precursor for organic electronic materials due to its conjugated thienopyrimidine system.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthetic routes.

Basic Information

Product Name	2-(Chloromethyl)-5-(4-Chlorophenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	91225-69-3
Molecular Formula	C13H8Cl2N2OS
Molecular Weight	311.18 g/mol
Synonyms	4(3H)-Thieno[2,3-d]pyrimidinone, 2-(chloromethyl)-5-(4-chlorophenyl)-; 2-(Chloromethyl)-5-(4-chlorophenyl)-4H-thieno[2,3-d]pyrimidin-4-one; 5-(4-Chlorophenyl)-2-(chloromethyl)thieno[2,3-d]pyrimidin-4(3H)-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 2-(chloromethyl)-5-(4-chlorophenyl)-; CAS 91225-69-3
EINECS	Contact for details

Quality Control

Every batch of 2-(Chloromethyl)-5-(4-Chlorophenyl)Thieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management protocols. Our products undergo rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency meet the exacting standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each 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. This compound is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (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.