Description

2,4-Dimethyl-1,3-Dioxane CAS NO 766-20-1 is a versatile cyclic acetal primarily used as a solvent and chemical intermediate. Its value lies in its ability to act as a protecting group for carbonyls and as a building block for more complex molecules in organic synthesis. This compound is essential for industries focused on fine chemicals, fragrances, and polymer research, where its specific reactivity and solvent properties are leveraged.

Application

• Chemical Intermediate: Serves as a key precursor in the synthesis of pharmaceuticals, agrochemicals, and specialty polymers.
• Solvent & Reaction Medium: Used in various organic transformations, particularly where a stable, aprotic solvent is required.
• Fragrance & Flavor Industry: Acts as a building block or solvent in the creation of complex aroma chemicals.
• Protecting Group Chemistry: Utilized to temporarily mask aldehyde or ketone functionalities during multi-step synthetic sequences.
• Polymer Science: Employed in research and development of novel polymeric materials and resins.
• Crosslinking Agent: Can be used in formulations for coatings, adhesives, and elastomers.

Basic Information

Product Name	2,4-Dimethyl-1,3-Dioxane
CAS No.	766-20-1
Molecular Formula	C6H12O2
Molecular Weight	116.16 g/mol
Synonyms	2,4-Dimethyl-m-dioxane; 1,3-Dioxane, 2,4-dimethyl-; 2,4-Dimethyl-1,3-dioxacyclohexane; Acetaldehyde propylene acetal; Propionaldehyde ethylene acetal (mixed isomer); NSC 66466
EINECS	212-166-9

Quality Control

Our 2,4-Dimethyl-1,3-Dioxane is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing including GC assay, identity confirmation, and impurity profiling to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize peroxide formation. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.410 - 1.415
Density (g/mL at 20°C)	0.950 - 0.980

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