Description

1,3-Dioxolane, 2-Ethyl-2,4,4-Trimethyl-5-Methylene- is a specialized cyclic acetal derivative with a unique sterically hindered structure. This compound is valued for its role as a versatile chemical intermediate and building block in advanced organic synthesis. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly where its hindered structure can impart specific stereochemical or stability properties.
• Agrochemical Synthesis: Serves as a key precursor in the development of new herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the production of specialty polymers, coatings, and adhesives to modify flexibility, adhesion, or chemical resistance.
• Flavor & Fragrance Chemistry: Employed in the creation of novel aroma chemicals and flavoring agents due to its potential to form unique oxygenated heterocycles.
• Organic Synthesis Building Block: Utilized in academic and industrial research for constructing complex molecular architectures, including natural product analogs.
• Electrolyte Additive: Investigated for use in advanced battery formulations, such as lithium-ion electrolytes, to improve stability and performance.

Basic Information

Product Name	1,3-Dioxolane, 2-Ethyl-2,4,4-Trimethyl-5-Methylene-
CAS No.	89995-42-6
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	2-Ethyl-2,4,4-trimethyl-5-methylene-1,3-dioxolane; 5-Methylene-2-ethyl-2,4,4-trimethyl-1,3-dioxolane; 1,3-Dioxolane, 2-ethyl-2,4,4-trimethyl-5-methylene-; Ethyl trimethyl methylene dioxolane; Cyclic acetal of isobutyraldehyde and 3-methyl-3-buten-1-ol (derivative).
EINECS	Contact for details

Quality Control

Our 1,3-Dioxolane, 2-Ethyl-2,4,4-Trimethyl-5-Methylene- is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are available upon request 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 away from strong acids and incompatible organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.430 - 1.440
Density (g/mL at 20°C)	0.950 - 0.970

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