Description

Ethanone, 1-(5-Chloro-1H-Pyrazolo[4,3-D]Pyrimidin-1-Yl)- is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound is valued for its role as a key intermediate in the development of novel pharmaceutical agents, particularly in targeted therapeutic areas. It is primarily sought after by research institutions and pharmaceutical companies engaged in drug discovery and process chemistry. The consistent quality and reliable supply of this intermediate are critical for accelerating R&D timelines and ensuring reproducible results in complex synthetic pathways.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs), especially for kinase inhibitors and other targeted therapies.
• Biochemical Research: Used in medicinal chemistry programs for structure-activity relationship (SAR) studies and lead optimization.
• Process Development: Employed in scaling up synthetic routes from laboratory to pilot plant and commercial manufacturing scales.
• Reference Standard: Utilized as an analytical standard for quality control and method validation in pharmaceutical analysis.
• Custom Synthesis: Acts as a starting material for the contract manufacturing of proprietary compounds and novel chemical entities.

Basic Information

Product Name	Ethanone, 1-(5-Chloro-1H-Pyrazolo[4,3-D]Pyrimidin-1-Yl)-
CAS No.	633328-97-9
Molecular Formula	C7H5ClN4O
Molecular Weight	196.59 g/mol
Synonyms	1-(5-Chloro-1H-pyrazolo[4,3-d]pyrimidin-1-yl)ethanone; 5-Chloro-1-(1-oxoethyl)-1H-pyrazolo[4,3-d]pyrimidine; 1-Acetyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidine; 5-Chloro-1H-pyrazolo[4,3-d]pyrimidin-1-yl methyl ketone; 633328-97-9; Ethanone, 1-(5-chloro-1H-pyrazolo[4,3-d]pyrimidin-1-yl)-; 5-Chloro-1-acetyl-1H-pyrazolo[4,3-d]pyrimidine
EINECS	Contact for details

Quality Control

Our Ethanone, 1-(5-Chloro-1H-Pyrazolo[4,3-D]Pyrimidin-1-Yl)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with every shipment to support your quality and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture.

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%
Heavy Metals	≤ 20 ppm

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