Description

3-Isobutyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One is a sophisticated heterocyclic compound that serves as a critical building block in advanced organic synthesis. Its unique fused-ring structure containing thienopyrimidine and cyclopentane moieties makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and specialty agrochemicals. This compound is primarily sought by research institutions and industrial R&D departments focused on medicinal chemistry and crop protection science.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Research: Building block for developing next-generation herbicides and fungicides with novel modes of action.
• Material Science: Potential monomer or additive for creating specialized polymers with unique electronic or thermal properties.
• Academic & Contract Research: Essential reagent for methodological studies in heterocyclic and organosulfur chemistry.
• Chemical Library Synthesis: Used for constructing diverse compound libraries for high-throughput screening in drug discovery.

Basic Information

Product Name	3-Isobutyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	374546-48-2
Molecular Formula	C₁₅H₂₀N₂OS₂
Molecular Weight	308.46 g/mol
Synonyms	3-Isobutyl-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, 3,5,6,7-tetrahydro-3-(2-methylpropyl)-2-mercapto-; 3-(2-Methylpropyl)-2-sulfanyl-5,6-dihydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one; CAS 374546-48-2
EINECS	Contact for details

Quality Control

Every batch of 3-Isobutyl-2-Mercapto-3,5,6,7-Tetrahydro-4H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidin-4-One is manufactured under strict quality management systems. We provide comprehensive analytical documentation, including a detailed Certificate of Analysis (COA) with results from HPLC, NMR, and MS to verify identity and purity. Our quality protocols are designed to meet the stringent requirements of pharmaceutical and agrochemical R&D, ensuring batch-to-batch consistency and reliability for your critical synthesis work.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation, the container should be sealed immediately after use to minimize exposure to air.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 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.