Description

5,7-Dichloro-3-Methylpyrazolo[1,5-A]Pyrimidine is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its functionalized pyrazolopyrimidine scaffold, which serves as a versatile precursor for the development of novel pharmacologically active compounds. This intermediate is primarily sought after by research institutions and pharmaceutical companies engaged in medicinal chemistry and the synthesis of new chemical entities.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the research and development of new drug candidates, particularly those targeting kinase inhibition and other therapeutic pathways.
• Medicinal Chemistry Research: Used as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Agrochemical Synthesis: Serves as a building block for developing novel active ingredients in crop protection products.
• Material Science Research: Potential intermediate in the synthesis of organic electronic materials or specialty dyes due to its conjugated heterocyclic system.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations specializing in custom synthesis and process development for the life sciences industry.

Basic Information

Product Name	5,7-Dichloro-3-Methylpyrazolo[1,5-A]Pyrimidine
CAS No.	939979-43-8
Molecular Formula	C7H5Cl2N3
Molecular Weight	202.04 g/mol
Synonyms	3-Methyl-5,7-dichloropyrazolo[1,5-a]pyrimidine; 5,7-Dichloro-3-methyl-1H-pyrazolo[1,5-a]pyrimidine; Pyrazolo[1,5-a]pyrimidine, 5,7-dichloro-3-methyl-; 939979-43-8; 5,7-Dichloro-3-methylpyrazolo[1,5-a]pyrimidine
EINECS	Contact for details

Quality Control

Our 5,7-Dichloro-3-Methylpyrazolo[1,5-A]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing specifications such as assay (HPLC), related substances, and residual solvents. Our quality commitment supports applications in regulated research and development environments.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.