Description

2-(Chloromethyl)-5-(5-Methylthien-2-Yl)Thieno[2,3-D]Pyrimidin-4(3H)-One is a high-value, heterocyclic organic compound that serves as a critical building block in advanced pharmaceutical synthesis. Its complex fused-ring structure, featuring both thiophene and pyrimidine moieties, makes it a versatile intermediate for developing novel active pharmaceutical ingredients (APIs). This compound is primarily sought after by research institutions and pharmaceutical manufacturers engaged in the discovery and production of new therapeutic agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Medicinal Chemistry Research: Used extensively in R&D for structure-activity relationship (SAR) studies and lead optimization in drug discovery programs.
• API Synthesis: Serves as a core building block in the multi-step synthesis of potential Active Pharmaceutical Ingredients (APIs).
• Chemical Biology Probes: Utilized in the development of specialized molecular probes for studying biological pathways and target validation.
• Custom Synthesis: Employed by fine chemical manufacturers for producing custom-designed, high-value compounds for client-specific projects.

Basic Information

Product Name	2-(Chloromethyl)-5-(5-Methylthien-2-Yl)Thieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	851116-05-7
Molecular Formula	C₁₂H₉ClN₂OS₂
Molecular Weight	296.79 g/mol
Synonyms	2-(Chloromethyl)-5-(5-methyl-2-thienyl)thieno[2,3-d]pyrimidin-4(3H)-one; 4(3H)-Thieno[2,3-d]pyrimidinone, 2-(chloromethyl)-5-(5-methyl-2-thienyl)-; 851116-05-7; Thieno[2,3-d]pyrimidine derivative; 5-(5-Methylthiophen-2-yl)-2-(chloromethyl)thieno[2,3-d]pyrimidin-4(3H)-one
EINECS	Contact for details

Quality Control

Every batch of 2-(Chloromethyl)-5-(5-Methylthien-2-Yl)Thieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management systems. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) with detailed HPLC purity data, to ensure the material meets the stringent requirements for pharmaceutical R&D and synthesis. Our quality commitment aligns with cGMP principles for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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