Description

5H-Pyrano[2,3-D]Pyrimidine (9Ci) is a high-purity heterocyclic organic compound, identified by CAS NO 41688-96-4, that serves as a critical advanced intermediate in modern synthetic chemistry. Its fused pyranopyrimidine core structure makes it a valuable building block for constructing complex molecular architectures with targeted biological and material properties. This compound is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel drug candidates, particularly in kinase inhibitor and antiviral therapeutic areas.
• Agrochemical Research: Used as a core scaffold in the synthesis of new-generation herbicides, fungicides, and plant growth regulators.
• Material Science Precursor: Employed in the development of organic electronic materials, including organic light-emitting diodes (OLEDs) and charge-transport molecules.
• Chemical Biology Probe: Serves as a starting material for creating molecular probes to study enzyme function and biological pathways.
• Academic & Contract Research: Essential for methodological studies in heterocyclic chemistry and the discovery of new synthetic routes in university and CRO laboratories.
• Fine Chemical Synthesis: Acts as a versatile intermediate for custom synthesis and the production of specialty chemicals with specific functional properties.

Basic Information

Product Name	5H-Pyrano[2,3-D]Pyrimidine (9Ci)
CAS No.	41688-96-4
Molecular Formula	C7H6N2O
Molecular Weight	134.14 g/mol
Synonyms	5H-Pyrano[2,3-d]pyrimidine; 41688-96-4; Pyrano[2,3-d]pyrimidine, 5H-; 5H-Pyrano[2,3-d]pyrimidine (9CI); 5H-Pyrano(2,3-d)pyrimidine; Pyrano[2,3-d]pyrimidine; 5H-Pyrano[2,3-d]pyrimidine (9CI) (CAS RN: 41688-96-4); 5H-Pyrano[2,3-d]pyrimidine, 9CI
EINECS	Contact for details

Quality Control

Our 5H-Pyrano[2,3-D]Pyrimidine (9Ci) is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder/crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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