Description

2-(1-Chloroethyl)-5-Phenylthieno[2,3-D]Pyrimidin-4(3H)-One is a high-value, heterocyclic organic compound featuring a fused thienopyrimidine core. This specialized chemical building block is critical for advanced research and development in medicinal chemistry. It is primarily sought after by pharmaceutical R&D teams and fine chemical manufacturers for the synthesis of novel active pharmaceutical ingredients (APIs) and other biologically active molecules.

Application

• Pharmaceutical Intermediate: Serves as a key synthetic precursor in the development of new drug candidates, particularly those targeting kinase inhibition or other enzymatic pathways.
• Medicinal Chemistry Research: Used as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Fine Chemical Synthesis: Employed in the multi-step synthesis of complex, high-value organic molecules for various life science applications.
• Biochemical Tool Compound: Potential use in the development of chemical probes for investigating biological mechanisms and target validation.

Basic Information

Product Name	2-(1-Chloroethyl)-5-Phenylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	733030-57-4
Molecular Formula	C14H11ClN2OS
Molecular Weight	290.77 g/mol
Synonyms	2-(1-Chloroethyl)-5-phenyl-3H-thieno[2,3-d]pyrimidin-4-one; 5-Phenyl-2-(1-chloroethyl)thieno[2,3-d]pyrimidin-4(3H)-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 2-(1-chloroethyl)-5-phenyl-; CAS 733030-57-4
EINECS	Contact for details

Quality Control

Every batch of 2-(1-Chloroethyl)-5-Phenylthieno[2,3-D]Pyrimidin-4(3H)-One is manufactured and tested under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.