Description

5,5-Dimethyl-1,3-Dioxane is a versatile cyclic acetal and a valuable chemical intermediate. This compound matters for its role as a key building block in organic synthesis and as a precursor for specialty chemicals. Industries that need it include pharmaceutical research, fragrance and flavor manufacturing, and polymer chemistry, where it serves as a monomer or a protecting group reagent.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other complex organic molecules.
• Fragrance & Flavor Precursor: Serves as a starting material for creating specific aroma chemicals and flavoring agents.
• Polymer Chemistry: Acts as a monomer or a cross-linking agent in the production of specialty resins and polymers.
• Organic Synthesis: Functions as a protecting group for carbonyl compounds in multi-step synthetic routes.
• Solvent & Reaction Medium: Employed as a polar aprotic solvent for specific organic reactions.
• Chemical Research: Utilized in academic and industrial R&D for developing new synthetic methodologies.

Basic Information

Product Name	5,5-Dimethyl-1,3-Dioxane
CAS No.	872-98-0
Molecular Formula	C6H12O2
Molecular Weight	116.16 g/mol
Synonyms	5,5-Dimethyl-m-dioxane; 5,5-Dimethyl-1,3-dioxacyclohexane; Acetaldehyde 2,2-Dimethyltrimethylene Acetal; 2,2-Dimethyl-1,3-dioxane-5-methanol (related); DMD; Cyclic Acetal of Acetaldehyde and 2,2-Dimethyl-1,3-propanediol
EINECS	212-828-1

Quality Control

Our 5,5-Dimethyl-1,3-Dioxane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.415 - 1.425
Density (20°C)	0.95 - 0.99 g/mL

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