Description

Oxazolo[5,4-D]Pyrimidine (8Ci,9Ci) is a high-purity heterocyclic organic compound, identified by CAS NO 273-64-3, serving as a critical building block in advanced chemical synthesis. Its fused oxazole-pyrimidine structure makes it a valuable scaffold for developing novel pharmaceuticals and agrochemicals. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to create new active molecules with targeted properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for antiviral, anticancer, and central nervous system (CNS) active compounds.
• Agrochemical Research: Used as a core scaffold for developing new generations of herbicides, fungicides, and insecticides with improved efficacy.
• Fine Chemical Synthesis: Employed in constructing complex heterocyclic systems for specialty chemicals and functional materials.
• Academic & R&D: Serves as a valuable reagent in organic chemistry research for studying reaction mechanisms and developing new synthetic methodologies.
• Material Science: Potential building block for organic electronic materials, such as OLEDs or conductive polymers, due to its electron-deficient aromatic system.

Basic Information

Product Name	Oxazolo[5,4-D]Pyrimidine (8Ci,9Ci)
CAS No.	273-64-3
Molecular Formula	C5H3N3O
Molecular Weight	121.10 g/mol
Synonyms	Oxazolo[5,4-d]pyrimidine; 1,3-Oxazolo[5,4-d]pyrimidine; Oxazolo(5,4-d)pyrimidine; 273-64-3; NSC 51128; Furo[2,3-d]pyrimidine (related structure); [1,3]Oxazolo[5,4-d]pyrimidine
EINECS	Contact for details

Quality Control

Our Oxazolo[5,4-D]Pyrimidine is manufactured under strict quality management systems. Each 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 commercial synthesis. Certificates of Analysis (COA) with detailed specifications are provided to guarantee traceability, consistency, and reliability for your critical processes.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.