Description

3-Allyl-2-((2-(4-(2-Hydroxyethyl)Piperazin-1-Yl)-2-Oxoethyl)Thio)-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One is a sophisticated heterocyclic organic compound featuring a fused thienopyrimidine core, which is of significant interest in advanced pharmaceutical research and development. This molecule serves as a key synthetic intermediate or a potential pharmacophore for designing novel therapeutic agents, particularly in oncology and kinase inhibition. It is primarily sought by pharmaceutical R&D laboratories, contract research organizations (CROs), and fine chemical manufacturers engaged in the synthesis of targeted small-molecule drugs.

Application

• Pharmaceutical Intermediate: A critical building block in the multi-step synthesis of novel drug candidates targeting specific disease pathways.
• Kinase Inhibitor Research: The thienopyrimidine scaffold is a privileged structure in the development of potent and selective kinase inhibitors for cancer therapy.
• Chemical Biology Probe: Used in academic and industrial research to study enzyme function and cellular signaling mechanisms.
• Process Chemistry Development: Serves as a reference standard or a key intermediate during the scale-up and optimization of API (Active Pharmaceutical Ingredient) manufacturing processes.
• Custom Synthesis & Medicinal Chemistry: Employed by CROs and CDMOs for client-specific projects requiring complex heterocyclic chemistry.

Basic Information

Product Name	3-Allyl-2-((2-(4-(2-Hydroxyethyl)Piperazin-1-Yl)-2-Oxoethyl)Thio)-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	315695-58-0
Molecular Formula	C21H26N4O3S2
Molecular Weight	446.59 g/mol
Synonyms	3-Allyl-2-[[2-[4-(2-hydroxyethyl)-1-piperazinyl]-2-oxoethyl]thio]-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one; 4H-Cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one, 3-allyl-2-[[2-[4-(2-hydroxyethyl)-1-piperazinyl]-2-oxoethyl]thio]-3,5,6,7-tetrahydro-; CAS 315695-58-0; Thienopyrimidine derivative, 3-allyl substituted; Cyclopentathienopyrimidinone piperazine derivative
EINECS	Contact for details

Quality Control

We supply this advanced intermediate under a rigorous quality management system. Every batch is characterized and tested to ensure identity, purity, and consistency, supporting critical R&D and early-stage development work. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing specifications such as purity (HPLC), identity (NMR, IR), and impurity profile. Our production adheres to cGMP principles where applicable for pharmaceutical-grade material.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The compound may be hygroscopic (moisture-sensitive); therefore, the container should be kept tightly sealed in a dry environment. For long-term storage, consider inert atmosphere conditions.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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