Description

[1,2,3]Oxadiazolo[5,4-D]Pyrimidine (8Ci,9Ci) is a high-purity fused heterocyclic compound, serving as a critical advanced intermediate in organic synthesis. Its unique oxadiazolo-pyrimidine scaffold is essential for constructing complex molecules with targeted biological and electronic properties. This compound is primarily required by researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of potential drug candidates, particularly in oncology, neurology, and antiviral research.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Organic Electronic Materials: Serves as a precursor for electron-transport materials (ETMs) or emissive layers in OLED (Organic Light-Emitting Diode) devices.
• Chemical Biology Probe: Utilized as a core structure for designing molecular probes to study enzyme function and cellular pathways.
• Academic & Contract Research: Employed in universities and CROs (Contract Research Organizations) for methodological studies and discovery chemistry.
• Ligand Synthesis: Acts as a precursor for creating specialized ligands used in catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	[1,2,3]Oxadiazolo[5,4-D]Pyrimidine (8Ci,9Ci)
CAS No.	273-66-5
Molecular Formula	C₄H₂N₄O
Molecular Weight	122.08 g/mol
Synonyms	[1,2,3]Oxadiazolo[5,4-d]pyrimidine; 1,2,3-Oxadiazolo[5,4-d]pyrimidine; Oxadiazolopyrimidine; Pyrimido[5,4-e]-1,2,3-oxadiazine; 273-66-5; 1H-[1,2,3]Oxadiazolo[5,4-d]pyrimidine; NSC 51128
EINECS	Contact for details

Quality Control

Our [1,2,3]Oxadiazolo[5,4-D]Pyrimidine (8Ci,9Ci) is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the exacting standards required for research and development. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere for long-term storage to prevent potential degradation.

Specification

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