Description

5-Ethenylidene-2,2-Dimethyl-1,3-Dioxane CAS NO 74685-78-2 is a specialized cyclic acetal derivative, valued for its unique chemical structure that serves as a versatile building block and reactive intermediate in advanced organic synthesis. Its primary commercial value lies in its ability to introduce protected functional groups and act as a precursor for complex molecules. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring cyclic acetal or ketal protecting groups.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where its structure contributes to specific biological activity or stability.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for developing specialty polymers with tailored properties like controlled degradation or specific reactivity.
• Fine Chemical Production: Acts as a precursor for synthesizing complex flavors, fragrances, and other high-value fine chemicals.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and constructing novel molecular architectures.

Basic Information

Product Name	5-Ethenylidene-2,2-Dimethyl-1,3-Dioxane
CAS No.	74685-78-2
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	5-Ethenylidene-2,2-dimethyl-1,3-dioxane; 2,2-Dimethyl-5-vinylidene-1,3-dioxane; 5-Vinylidene-2,2-dimethyl-1,3-dioxane; 1,3-Dioxane, 5-ethenylidene-2,2-dimethyl-; Acetaldehyde isopropylidene acetal dimer (related structure)
EINECS	Contact for details

Quality Control

Our 5-Ethenylidene-2,2-Dimethyl-1,3-Dioxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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). Keep away from strong oxidizing agents and incompatible materials.

Specification

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

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