Description

5-Ethylpyrazolo[1,5-A]Pyrimidin-7(4H)-One is a high-purity heterocyclic organic compound serving as a critical advanced intermediate in modern pharmaceutical and agrochemical research. Its unique pyrazolopyrimidine scaffold is essential for synthesizing novel active pharmaceutical ingredients (APIs) and fine chemicals with targeted biological activity. This product is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for lead optimization and scale-up synthesis.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel drug candidates, particularly in kinase inhibitor and antiviral research.
• Agrochemical Synthesis: Used in the development of next-generation herbicides and fungicides that leverage its heterocyclic core structure.
• Chemical Research & Development: Serves as a versatile precursor for creating complex molecular libraries in medicinal chemistry and material science.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals requiring a defined pyrazolopyrimidine moiety.

Basic Information

Product Name	5-Ethylpyrazolo[1,5-A]Pyrimidin-7(4H)-One
CAS No.	244127-30-8
Molecular Formula	C8H9N3O
Molecular Weight	163.18 g/mol
Synonyms	5-Ethyl-4H-pyrazolo[1,5-a]pyrimidin-7-one; 5-Ethyl-7H-pyrazolo[1,5-a]pyrimidin-7-one; 5-Ethylpyrazolo[1,5-a]pyrimidin-7-ol; 5-Ethyl-7-hydroxypyrazolo[1,5-a]pyrimidine; 244127-30-8; Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 5-ethyl-
EINECS	Contact for details

Quality Control

Our 5-Ethylpyrazolo[1,5-A]Pyrimidin-7(4H)-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research and development. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to industry best practices, and specifications can be aligned with customer requirements for advanced synthetic applications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.