Description

2H-Pyran, 2-Ethynyltetrahydro-3-Methoxy-, trans- (9Ci) is a specialized heterocyclic building block featuring a unique combination of an ethynyl group and a methoxy-substituted tetrahydropyran ring. This compound matters as a versatile and high-value synthetic intermediate, enabling the construction of complex molecular architectures in advanced research and development. It is primarily needed by pharmaceutical, agrochemical, and advanced material chemists for applications in medicinal chemistry, catalyst development, and the synthesis of novel functional molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates, particularly for targeted therapies.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Material Science: Serves as a precursor for advanced polymers, liquid crystals, and organic electronic materials due to its rigid, functionalized structure.
• Catalyst Ligand Synthesis: The ethynyl and ether functionalities make it a valuable scaffold for constructing sophisticated ligands in homogeneous catalysis.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and enzyme mechanisms.
• Academic & Industrial R&D: A critical reagent for exploratory synthetic chemistry in both university laboratories and corporate R&D centers.

Basic Information

Product Name	2H-Pyran, 2-Ethynyltetrahydro-3-Methoxy-, trans- (9Ci)
CAS No.	202604-39-5
Molecular Formula	C8H10O2
Molecular Weight	138.16 g/mol
Synonyms	trans-2-Ethynyl-3-methoxytetrahydro-2H-pyran; 3-Methoxy-2-ethynyltetrahydro-2H-pyran; 2-Ethynyl-3-methoxytetrahydro-2H-pyran; 2-Ethynyltetrahydro-3-methoxy-2H-pyran; Tetrahydro-3-methoxy-2-ethynyl-2H-pyran; (trans)-2-Ethynyl-3-methoxytetrahydro-2H-pyran; 2H-Pyran, 2-ethynyltetrahydro-3-methoxy-, trans-; CAS 202604-39-5
EINECS	Contact for details

Quality Control

Our 2H-Pyran, 2-Ethynyltetrahydro-3-Methoxy-, trans- (9Ci) is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency essential for sensitive R&D and scale-up processes. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is stable under inert atmosphere. Keep away from strong bases and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Standard Grade)
Purity (GC/HPLC)	≥ 98.0% (High Purity Grade)
Water Content (KF)	≤ 0.5%

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