Description

4-Chloro-2-Ethyl-5-Phenylthieno[2,3-D]Pyrimidine is a high-purity, advanced pharmaceutical intermediate belonging to the thienopyrimidine class of heterocyclic compounds. This compound is a critical building block in modern medicinal chemistry, valued for its role in the synthesis of novel therapeutic agents targeting various disease pathways. It is primarily utilized by research institutions and pharmaceutical manufacturers engaged in the development of kinase inhibitors and other small-molecule drugs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel kinase inhibitors for oncology and inflammatory disease research.
• Medicinal Chemistry Research: Serves as a versatile scaffold for structure-activity relationship (SAR) studies and lead optimization in drug discovery programs.
• Chemical Biology Probes: Used in the development of chemical probes to study specific enzyme functions and cellular signaling pathways.
• Agrochemical Development: Potential intermediate for creating new active ingredients in crop protection products.
• Material Science Research: Investigated as a component in the synthesis of organic electronic materials due to its fused heterocyclic structure.

Basic Information

Product Name	4-Chloro-2-Ethyl-5-Phenylthieno[2,3-D]Pyrimidine
CAS No.	1042511-49-8
Molecular Formula	C14H11ClN2S
Molecular Weight	274.77 g/mol
Synonyms	4-Chloro-2-ethyl-5-phenylthieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4-chloro-2-ethyl-5-phenyl-; 2-Ethyl-4-chloro-5-phenylthieno[2,3-d]pyrimidine; 5-Phenyl-4-chloro-2-ethylthieno[2,3-d]pyrimidine; CAS 1042511-49-8
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-Ethyl-5-Phenylthieno[2,3-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports compliance with cGMP and ICH guidelines for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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