Description

Pyrazolo[1,5-A]Pyrimidine-3-Carboxylic Acid, 5,7-Dichloro-, Ethyl Ester is a high-purity, synthetically valuable heterocyclic building block. This compound is essential for advanced pharmaceutical research and development, particularly in the synthesis of novel active pharmaceutical ingredients (APIs). It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon for the development of new drug candidates, particularly in kinase inhibitor research.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides and fungicides.
• Chemical Biology Probe Development: Serves as a core scaffold for creating tool compounds to study biological pathways.
• Material Science Research: Investigated as a precursor for organic electronic materials and ligands in catalysis.
• Custom Synthesis & Contract Manufacturing: Supplied for bespoke synthesis projects requiring high-purity, complex heterocycles.

Basic Information

Product Name	Pyrazolo[1,5-A]Pyrimidine-3-Carboxylic Acid, 5,7-Dichloro-, Ethyl Ester
CAS No.	940284-55-9
Molecular Formula	C9H7Cl2N3O2
Molecular Weight	260.08 g/mol
Synonyms	5,7-Dichloropyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester; Ethyl 5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate; 5,7-Dichloro-3-(ethoxycarbonyl)pyrazolo[1,5-a]pyrimidine; Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid, 5,7-dichloro-, ethyl ester; CAS 940284-55-9
EINECS	Contact for details

Quality Control

Our Pyrazolo[1,5-A]Pyrimidine-3-Carboxylic Acid, 5,7-Dichloro-, Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via NMR and mass spectrometry, to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
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.