Description

Ethyl 7-Chloro-5-Phenylpyrazolo[1,5-A]Pyrimidine-3-Carboxylate is a high-purity, synthetically versatile heterocyclic building block. This compound is a critical intermediate in the research and development of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry. It is essential for pharmaceutical R&D teams, agrochemical scientists, and advanced material researchers seeking to develop new compounds with targeted biological or functional properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, especially for central nervous system (CNS) and anti-inflammatory targets.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies and the development of new chemical entities (NCEs).
• Agrochemical Development: Used in the research of novel pesticides and herbicides, leveraging its heterocyclic structure for bioactivity.
• Organic Synthesis Building Block: Employed in complex multi-step syntheses to construct fused pyrazolopyrimidine systems.
• Biochemical Tool Compound: Utilized in biochemical assays and as a reference standard for analytical method development.
• Material Science Research: Investigated for potential applications in organic electronics due to its conjugated molecular framework.

Basic Information

Product Name	Ethyl 7-Chloro-5-Phenylpyrazolo[1,5-A]Pyrimidine-3-Carboxylate
CAS No.	771514-25-1
Molecular Formula	C15H12ClN3O2
Molecular Weight	301.73 g/mol
Synonyms	7-Chloro-5-phenylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester; Ethyl 7-chloro-5-phenyl-1H-pyrazolo[1,5-a]pyrimidine-3-carboxylate; Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid, 7-chloro-5-phenyl-, ethyl ester; 771514-25-1; 7-Chloro-5-phenyl-1,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 7-Chloro-5-Phenylpyrazolo[1,5-A]Pyrimidine-3-Carboxylate 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 applications. Certificates of Analysis (COA) with detailed specifications 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 a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and under an inert atmosphere if necessary to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
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.