Description

Isoxazolo[5,4-D]Pyrimidine, 3-Nitroso- (9Ci) is a specialized heterocyclic organic compound featuring a fused isoxazole-pyrimidine core structure with a nitroso functional group. This compound is a critical advanced pharmaceutical intermediate and a versatile building block in medicinal chemistry research for the synthesis of novel drug candidates. It is primarily utilized by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in developing new therapeutic agents, particularly in areas requiring complex nitrogen-containing heterocycles.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential active pharmaceutical ingredients (APIs) targeting various disease pathways.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies and the development of new chemical entities in drug discovery programs.
• Heterocyclic Compound Synthesis: Used in organic synthesis to construct complex fused-ring systems relevant to agrochemicals and material science.
• Biochemical Tool Compound: Potential use in biochemical assays as a probe or inhibitor to study specific enzymatic or cellular processes.
• Academic Research: Employed in university and institutional laboratories for fundamental studies in organic chemistry and heterocyclic chemistry.

Basic Information

Item	Details
Product Name	Isoxazolo[5,4-D]Pyrimidine, 3-Nitroso- (9Ci)
CAS No.	139392-70-4
Molecular Formula	C6H3N5O2
Molecular Weight	177.12 g/mol
Synonyms	3-Nitrosoisoxazolo[5,4-d]pyrimidine; Isoxazolo[5,4-d]pyrimidine, 3-nitroso-; 3-Nitroso-7H-isoxazolo[5,4-d]pyrimidine; 139392-70-4; AI3-52455; NSC 405124; Isoxazolopyrimidine nitroso derivative
EINECS	Contact for details

Quality Control

Our Isoxazolo[5,4-D]Pyrimidine, 3-Nitroso- (9Ci) is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We are committed to meeting the stringent requirements of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider maintaining the product under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95%
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.