Description

4-Chloro-2-(Methylthio)-6,7-Dihydro-5H-Cyclopenta[D]Pyrimidine is a high-purity, synthetically versatile heterocyclic building block essential for advanced organic synthesis. This compound matters as a critical intermediate for developing novel active pharmaceutical ingredients (APIs) and agrochemicals, offering a unique fused-ring scaffold for structural diversification. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of kinase inhibitors, antiviral agents, and other small-molecule therapeutics targeting various disease pathways.
• Agrochemical Research: Serves as a core structure for developing new herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Chemical Synthesis Building Block: Used in medicinal chemistry for lead optimization and structure-activity relationship (SAR) studies due to its reactive chloro and methylthio substituents.
• Material Science Research: Potential intermediate for creating novel organic electronic materials or ligands for catalytic systems.

Basic Information

Product Name	4-Chloro-2-(Methylthio)-6,7-Dihydro-5H-Cyclopenta[D]Pyrimidine
CAS No.	51660-15-2
Molecular Formula	C8H9ClN2S
Molecular Weight	200.69 g/mol
Synonyms	4-Chloro-2-methylsulfanyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine; 2-(Methylthio)-4-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine; 4-Chloro-2-(methylmercapto)-6,7-dihydro-5H-cyclopenta[d]pyrimidine; 4-Chloro-2-methylthio-6,7-dihydro-5H-cyclopenta[d]pyrimidine; 51660-15-2; Cyclopenta[d]pyrimidine, 4-chloro-2-(methylthio)-6,7-dihydro-5H-
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-(Methylthio)-6,7-Dihydro-5H-Cyclopenta[D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure compliance with stringent in-house specifications. Certificates of Analysis (COA) detailing all quality parameters are provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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