Description

4,5-Dimethyl-1,3-Dioxane is a versatile heterocyclic compound belonging to the dioxane family, valued for its role as a key intermediate and solvent in advanced chemical synthesis. Its structure makes it particularly useful for introducing protective groups and modifying chemical reactivity in complex organic pathways. This product is essential for R&D laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides where its dioxane ring structure contributes to desired biological activity.
• Solvent & Reaction Medium: Acts as a polar aprotic solvent for various organic reactions, including Grignard reactions and metal-halogen exchanges.
• Chemical Protecting Group: Utilized to protect diols or carbonyl groups during multi-step synthetic sequences.
• Fragrance & Flavor Industry: Employed as a precursor or solvent in the creation of specific aroma chemicals.
• Polymer & Resin Modification: Functions as a monomer or cross-linking agent in the production of specialized polymers and resins.
• Research & Development: A valuable reagent for method development and exploratory chemistry in academic and industrial laboratories.

Basic Information

Product Name	4,5-Dimethyl-1,3-Dioxane
CAS No.	1779-22-2
Molecular Formula	C6H12O2
Molecular Weight	116.16 g/mol
Synonyms	4,5-Dimethyl-m-dioxane; 4,5-Dimethyl-1,3-dioxacyclohexane; 1,3-Dioxane, 4,5-dimethyl-; NSC 403108; 4,5-Dimethyl-1,3-dioxan; 4,5-Dimethyl-m-dioxan
EINECS	217-216-2

Quality Control

Our 4,5-Dimethyl-1,3-Dioxane is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, HPLC, 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 protocols.

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 nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. 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 (n20/D)	1.420 - 1.425
Density (20°C)	0.980 - 1.010 g/mL
Boiling Point	Approx. 140 - 145 °C

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