Description

Isoxazolo[5,4-D]Pyrimidin-4(5H)-One, 3-Methyl- (7Ci,9Ci) is a high-value heterocyclic organic compound, specifically a fused isoxazolopyrimidinone derivative, serving as a critical pharmaceutical intermediate and research chemical. Its unique molecular scaffold is essential for the synthesis of novel bioactive molecules, particularly in medicinal chemistry programs targeting enzyme inhibition. This compound is primarily utilized by R&D laboratories and fine chemical manufacturers engaged in developing new therapeutic agents and advanced material sciences.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of potential drug candidates, especially kinase inhibitors and other enzyme-targeting molecules.
• Medicinal Chemistry Research: Core scaffold for structure-activity relationship (SAR) studies and lead optimization in drug discovery projects.
• Biochemical Tool Compound: Used in vitro to study biological pathways and validate novel therapeutic targets.
• Organic Synthesis Reference Standard: Serves as a pure reference material for analytical method development and validation.
• Academic Research: Employed in universities and institutes for heterocyclic chemistry studies and the development of new synthetic methodologies.
• Agrochemical Research: Investigated as a precursor for developing new active ingredients with herbicidal or fungicidal properties.

Basic Information

Item	Details
Product Name	Isoxazolo[5,4-D]Pyrimidin-4(5H)-One, 3-Methyl- (7Ci,9Ci)
CAS No.	68571-74-4
Molecular Formula	C7H5N3O2
Molecular Weight	163.14 g/mol
Synonyms	3-Methylisoxazolo[5,4-d]pyrimidin-4(5H)-one; 3-Methyl-4,5-dihydroisoxazolo[5,4-d]pyrimidin-4-one; 3-Methyl-4,5-dihydroisoxazolo[5,4-d]pyrimidin-4(5H)-one; 3-Methyl-4,5-dihydro-[1,2]oxazolo[5,4-d]pyrimidin-4-one; 68571-74-4; Isoxazolo[5,4-d]pyrimidin-4(5H)-one, 3-methyl-; 3-Methylisoxazolopyrimidinone
EINECS	Contact for details

Quality Control

Our Isoxazolo[5,4-D]Pyrimidin-4(5H)-One, 3-Methyl- (7Ci,9Ci) is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent quality for your critical applications.

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 in a dry environment to maintain stability.

Specification

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