Description

3-Allyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular scaffolds. It is primarily sought by research institutions, custom synthesis houses, and pharmaceutical manufacturers engaged in the development of new chemical entities and specialty fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the research and development of new drug candidates, especially for central nervous system (CNS) and metabolic disorder targets.
• Organic Synthesis Building Block: Used in complex multi-step syntheses to construct fused heterocyclic systems common in modern medicinal chemistry.
• Chemical Research & Development: Serves as a standard or starting material in academic and industrial labs for methodology development and structure-activity relationship (SAR) studies.
• Custom Synthesis: Supplied to contract research and manufacturing organizations (CROs/CMOs) for client-specific projects requiring this unique molecular framework.
• Reference Standard: Can be utilized as a high-purity analytical standard for quality control and method validation in API production.

Basic Information

Product Name	3-Allyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	113520-01-7
Molecular Formula	C12H12N2OS2
Molecular Weight	264.37 g/mol
Synonyms	3-Allyl-2-mercapto-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-mercapto-3,5,6,7-tetrahydro-; 3-Allyl-2-thioxo-2,3-dihydro-1H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4(5H)-one; 113520-01-7; Allyl mercapto tetrahydro cyclopentathienopyrimidinone
EINECS	Contact for details

Quality Control

Our production of 3-Allyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide detailed Certificates of Analysis (COA) with every shipment, ensuring full traceability and compliance with customer specifications and cGMP guidelines where applicable.

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). This compound is easily oxidized and should be handled under an inert atmosphere for long-term storage or when opening containers to maintain purity. Keep away from heat and incompatible materials.

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%
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.