Description

3-Bromo-7-chloropyrazolo[1,5-a]pyrimidine is a high-value, multi-functional heterocyclic building block of significant interest in advanced organic synthesis. Its core structure makes it a critical intermediate for the development of novel pharmaceutical compounds and agrochemicals, particularly those targeting specific biological pathways. This compound is essential for research and development chemists in the life sciences sector, enabling the construction of complex molecules with potential therapeutic and agrochemical applications.

Application

• Pharmaceutical Intermediate: A key scaffold for synthesizing active pharmaceutical ingredients (APIs), particularly in kinase inhibitor research and other targeted therapies.
• Agrochemical Research: Used in the discovery and development of new herbicides, fungicides, and insecticides due to its bioactive heterocyclic core.
• Chemical Biology Probe: Serves as a building block for creating molecular probes to study enzyme function and cellular processes.
• Material Science Precursor: Potential intermediate in the synthesis of organic electronic materials and advanced polymers.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs and research institutions for bespoke synthesis projects and library generation.

Basic Information

Product Name	3-Bromo-7-chloropyrazolo[1,5-a]pyrimidine
CAS No.	877173-84-7
Molecular Formula	C6H3BrClN3
Molecular Weight	232.47 g/mol
Synonyms	3-Bromo-7-chloro-1H-pyrazolo[1,5-a]pyrimidine; 7-Chloro-3-bromopyrazolo[1,5-a]pyrimidine; Pyrazolo[1,5-a]pyrimidine, 3-bromo-7-chloro-; 877173-84-7; 3-Br-7-Cl-pyrazolo[1,5-a]pyrimidine
EINECS	Contact for details

Quality Control

Every batch of 3-Bromo-7-chloropyrazolo[1,5-a]pyrimidine is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the identity, purity, and consistency required for critical R&D and scale-up processes. Certificates of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and identification are available for each lot and provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.