Description

5-Methyl-2-Phenylpyrazolo[1,5-A]Pyrimidin-7(4H)-One is a high-purity heterocyclic organic compound that serves as a critical advanced intermediate in modern synthetic chemistry. Its unique pyrazolopyrimidine core structure makes it a valuable building block for the development of novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for its role in creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for kinase inhibitors and other targeted therapies.
• Agrochemical Research: Used as a core structure in the synthesis of novel herbicides, fungicides, and plant growth regulators.
• Material Science Precursor: Employed in the development of organic electronic materials, such as OLED (Organic Light-Emitting Diode) emitters and charge transport materials.
• Chemical Biology Probe: Serves as a scaffold for designing molecular probes to study biological pathways and enzyme functions.
• Academic & Contract Research: Utilized in universities and CROs (Contract Research Organizations) for methodological studies in heterocyclic chemistry and medicinal chemistry.

Basic Information

Product Name	5-Methyl-2-Phenylpyrazolo[1,5-A]Pyrimidin-7(4H)-One
CAS No.	65774-92-7
Molecular Formula	C₁₃H₁₁N₃O
Molecular Weight	225.25 g/mol
Synonyms	5-Methyl-2-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one; 2-Phenyl-5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one; 5-Methyl-2-phenyl-7H-pyrazolo[1,5-a]pyrimidin-7-one; 65774-92-7; Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 5-methyl-2-phenyl-; 5-Methyl-2-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidin-7-one
EINECS	Contact for details

Quality Control

Our 5-Methyl-2-Phenylpyrazolo[1,5-A]Pyrimidin-7(4H)-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support compliance with cGMP (current Good Manufacturing Practice) guidelines for pharmaceutical intermediates and can provide material for regulatory filings.

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 (IR)	Conforms to structure
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.