Description

1,3-Dioxane, 5-Ethynyl-2,5-Dimethyl-, trans- (9Ci) is a specialized heterocyclic organic compound featuring a 1,3-dioxane ring with an ethynyl substituent, serving as a valuable building block in advanced organic synthesis. Its unique structure makes it a critical intermediate for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. This high-purity compound is essential for chemists and R&D teams in fine chemical, life science, and material science industries seeking reliable, high-quality synthetic precursors.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and pesticides requiring specific heterocyclic frameworks.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced materials.
• Organic Synthesis: A versatile synthon for constructing complex natural products and other fine chemicals via click chemistry and other alkyne-based reactions.
• Ligand and Catalyst Development: Utilized in the preparation of novel ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Academic & Industrial R&D: Fundamental research reagent in universities and corporate laboratories for exploring new chemical reactions and pathways.

Basic Information

Product Name	1,3-Dioxane, 5-Ethynyl-2,5-Dimethyl-, trans- (9Ci)
CAS No.	54702-55-5
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	trans-5-Ethynyl-2,5-dimethyl-1,3-dioxane; 5-Ethynyl-2,5-dimethyl-1,3-dioxane, trans-; 2,5-Dimethyl-5-ethynyl-1,3-dioxane; 5-Ethynyl-2,5-dimethyl-m-dioxane; (trans)-5-Ethynyl-2,5-dimethyl-1,3-dioxane
EINECS	Contact for details

Quality Control

Our 1,3-Dioxane, 5-Ethynyl-2,5-Dimethyl-, trans- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
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.