Description

5-Oxo-4,5-Dihydro-Pyrazolo[1,5-A]Pyrimidine-2-Carboxylic Acid Ethyl Ester is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a versatile and critical intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting kinase inhibition and other therapeutic pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with improved efficacy and selectivity.
• Chemical Biology Probe Synthesis: Serves as a scaffold for creating tool compounds to study biological processes and identify new drug targets.
• Material Science: Potential building block for advanced organic electronic materials or metal-organic frameworks (MOFs) due to its fused heterocyclic structure.
• Academic & Contract Research: Essential for methodological development and discovery chemistry in university and CRO (Contract Research Organization) laboratories.
• Custom Synthesis & Scale-Up: Supplied for custom manufacturing projects, from milligram-scale feasibility studies to kilogram-scale process development.

Basic Information

Product Name	5-Oxo-4,5-Dihydro-Pyrazolo[1,5-A]Pyrimidine-2-Carboxylic Acid Ethyl Ester
CAS No.	1363405-50-8
Molecular Formula	C9H9N3O3
Molecular Weight	207.19 g/mol
Synonyms	Ethyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-2-carboxylate; Pyrazolo[1,5-a]pyrimidine-2-carboxylic acid, 4,5-dihydro-5-oxo-, ethyl ester; 1363405-50-8; Ethyl 5-oxo-4H-pyrazolo[1,5-a]pyrimidine-2-carboxylate; 5-Oxo-4H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 5-Oxo-4,5-Dihydro-Pyrazolo[1,5-A]Pyrimidine-2-Carboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality commitment supports compliance with cGMP and ICH guidelines for pharmaceutical intermediates, ensuring reliability for your most demanding R&D and scale-up projects.

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). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.