Description

2-Chloro-5H,7H,8H-Pyrano[4,3-D]Pyrimidine CAS NO 1260669-93-9 is a heterocyclic organic compound featuring a fused pyranopyrimidine core structure with a reactive chlorine substituent. This molecular architecture makes it a valuable and versatile chemical building block for advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly for central nervous system (CNS) and antiviral targets.
• Agrochemical Research: Used to construct novel heterocyclic scaffolds for the development of new herbicides, fungicides, or insecticides.
• Material Science: Serves as a monomer or functional unit in the research of advanced organic electronic materials or specialty polymers.
• Chemical Synthesis: Employed as a versatile electrophile in cross-coupling reactions (e.g., Suzuki, Buchwald-Hartwig) to introduce the pyranopyrimidine moiety.
• Academic & Contract Research: Utilized in university and CRO laboratories for methodological development and exploration of new chemical space.
• Ligand & Catalyst Development: The nitrogen and oxygen atoms in its structure make it a candidate for designing novel chelating ligands or organocatalysts.

Basic Information

Product Name	2-Chloro-5H,7H,8H-Pyrano[4,3-D]Pyrimidine
CAS No.	1260669-93-9
Molecular Formula	C7H7ClN2O
Molecular Weight	170.60 g/mol
Synonyms	2-Chloro-5H,7H,8H-pyrano[4,3-d]pyrimidine; 2-Chloro-5,7,8-trihydropyrano[4,3-d]pyrimidine; 2-Chloro-5,6,7,8-tetrahydropyrano[4,3-d]pyrimidine; Pyrano[4,3-d]pyrimidine, 2-chloro-5H,7H,8H-; 1260669-93-9; 2-Chloro-5,6,7,8-tetrahydro-pyrano[4,3-d]pyrimidine
EINECS	Contact for details

Quality Control

Every batch of 2-Chloro-5H,7H,8H-Pyrano[4,3-D]Pyrimidine is manufactured under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for long-term storage to maintain stability.

Specification

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

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