Description

Pyrazolo[1,5-A]Pyrimidin-7(4H)-One, 3-(4-Chlorophenyl)-5-(Phenylmethyl)- is a high-value heterocyclic organic compound that serves as a critical synthetic intermediate in advanced pharmaceutical research and development. This compound matters because it provides a versatile and structurally defined scaffold for creating novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring targeted molecular design. Pharmaceutical companies, agrochemical R&D laboratories, and specialized fine chemical manufacturers need this precise building block to accelerate their discovery pipelines and develop next-generation products.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates targeting various disease pathways.
• Kinase Inhibitor Research: Core scaffold in the development of small molecule inhibitors for oncology and inflammatory diseases.
• Agrochemical Synthesis: Intermediate for creating new generations of herbicides and fungicides with improved efficacy.
• Material Science Research: Used in the development of organic electronic materials and advanced polymers.
• Chemical Biology Probes: Serves as a precursor for labeled compounds used in mechanistic studies and target identification.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific target molecules under cGMP conditions.

Basic Information

Product Name	Pyrazolo[1,5-A]Pyrimidin-7(4H)-One, 3-(4-Chlorophenyl)-5-(Phenylmethyl)-
CAS No.	419547-73-2
Molecular Formula	C19H14ClN3O
Molecular Weight	335.79 g/mol
Synonyms	3-(4-Chlorophenyl)-5-(phenylmethyl)pyrazolo[1,5-a]pyrimidin-7(4H)-one; 3-(4-Chlorophenyl)-5-benzyl-4,7-dihydro-1H-pyrazolo[1,5-a]pyrimidin-7-one; 5-Benzyl-3-(4-chlorophenyl)-4,7-dihydro-1H-pyrazolo[1,5-a]pyrimidin-7-one; 419547-73-2; Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 3-(4-chlorophenyl)-5-(phenylmethyl)-; 3-(p-Chlorophenyl)-5-benzylpyrazolo[1,5-a]pyrimidin-7(4H)-one
EINECS	Contact for details

Quality Control

Every batch of our Pyrazolo[1,5-A]Pyrimidin-7(4H)-One, 3-(4-Chlorophenyl)-5-(Phenylmethyl)- undergoes rigorous analytical testing to ensure identity, purity, and consistency. We adhere to stringent internal quality standards suitable for research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity by HPLC, identification by spectroscopic methods (IR, NMR), and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to ensure optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Purity (HPLC)	≥ 97.0%
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.