Description

3-Bromo-6,7-Dihydro-4H-Cyclopenta[D]Pyrazolo[1,5-A]Pyrimidin-8(5H)-One is a high-value, multi-cyclic heteroaromatic building block of significant interest in advanced organic synthesis. Its complex fused-ring structure, featuring bromine, pyrazole, and pyrimidine motifs, makes it a critical intermediate for constructing novel pharmacologically active compounds. This product is primarily targeted at research and development teams in the pharmaceutical and agrochemical industries, where it is used to develop new drug candidates and active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a key scaffold in the synthesis of novel small molecule therapeutics, particularly for kinase inhibitors and other targeted therapies.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides due to its bioactive heterocyclic core.
• Chemical Biology Probe Development: Acts as a versatile building block for creating molecular probes to study biological pathways and protein functions.
• Material Science Research: Investigated as a precursor for organic electronic materials and advanced polymers with specific optoelectronic properties.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthesis projects requiring complex brominated heterocycles.

Basic Information

Product Name	3-Bromo-6,7-Dihydro-4H-Cyclopenta[D]Pyrazolo[1,5-A]Pyrimidin-8(5H)-One
CAS No.	1429309-35-2
Molecular Formula	C9H8BrN3O
Molecular Weight	254.08 g/mol
Synonyms	3-Bromo-5,6,7,8-tetrahydrocyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-one; 3-Bromo-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-one; 1429309-35-2; 3-Bromo-5,6,7,8-tetrahydro-8-oxocyclopenta[d]pyrazolo[1,5-a]pyrimidine; 3-Bromocyclopenta[d]pyrazolo[1,5-a]pyrimidin-8(5H)-one
EINECS	Contact for details

Quality Control

Our 3-Bromo-6,7-Dihydro-4H-Cyclopenta[D]Pyrazolo[1,5-A]Pyrimidin-8(5H)-One is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, suitable for demanding research and development applications. All products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere to ensure optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.