Description

Ethyl 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate is a high-purity heterocyclic building block and pharmaceutical intermediate. This compound is valued for its precise molecular structure, which serves as a critical scaffold in modern medicinal chemistry and drug discovery. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates targeting various therapeutic areas.
• Medicinal Chemistry Research: Used as a versatile scaffold for constructing compound libraries in high-throughput screening and structure-activity relationship (SAR) studies.
• Agrochemical Development: Serves as a building block for novel pesticides and herbicides due to its fused pyrazolopyrimidine core.
• Chemical Synthesis: Employed in organic synthesis for constructing complex nitrogen-containing heterocycles.
• Biochemical Tool Compound: Potential use in developing probes for studying biological pathways and enzyme inhibition.

Basic Information

Product Name	Ethyl 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate
CAS No.	926663-00-5
Molecular Formula	C9H9N3O3
Molecular Weight	207.19 g/mol
Synonyms	5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester; Ethyl 5-oxo-4H-pyrazolo[1,5-a]pyrimidine-3-carboxylate; 926663-00-5; Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid, 4,5-dihydro-5-oxo-, ethyl ester; Ethyl 4,5-dihydro-5-oxopyrazolo[1,5-a]pyrimidine-3-carboxylate
EINECS	Contact for details

Quality Control

Our Ethyl 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance protocols.

Storage

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

Specification

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