Description

2,2,4,4,5,5-Hexamethyl-1,3-Dioxa-2-Silacyclopentane is a specialized organosilicon compound, specifically a cyclic siloxane derivative, with the CAS registry number 3081-20-7. This chemical serves as a valuable high-purity intermediate and functional precursor in advanced material synthesis, prized for its unique silicon-oxygen cyclic structure. It is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and specialty silicone polymer industries for developing novel compounds and enhancing material properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules requiring specific silicon-containing scaffolds.
• Agrochemical Synthesis: Serves as a key building block for creating novel silicon-based pesticides, herbicides, and plant growth regulators.
• Specialty Silicone Production: Acts as a monomer or cross-linking agent in the manufacture of high-performance silicone resins, elastomers, and coatings with tailored properties.
• Surface Modification Agent: Employed to functionalize silica surfaces or other inorganic materials, improving compatibility in composite materials.
• Laboratory Reagent: Utilized in organic and organometallic chemistry research as a protected silanol equivalent or for introducing specific functional groups.
• Adhesive & Sealant Formulations: Incorporated as an additive to modify the cure profile, adhesion, or flexibility of advanced adhesive systems.

Basic Information

Product Name	2,2,4,4,5,5-Hexamethyl-1,3-Dioxa-2-Silacyclopentane
CAS No.	3081-20-7
Molecular Formula	C8H18O2Si
Molecular Weight	174.31 g/mol
Synonyms	1,3-Dioxa-2-silacyclopentane, 2,2,4,4,5,5-hexamethyl-; Hexamethyldioxasilacyclopentane; 2,2,4,4,5,5-Hexamethyl-1,3,2-dioxasilolane; Dioxasilolane, hexamethyl-; 1,3,2-Dioxasilolane, 2,2,4,4,5,5-hexamethyl-; Cyclic dimethylsiloxane ethylene derivative; Contact for details on additional trade names.
EINECS	221-378-7

Quality Control

Our 2,2,4,4,5,5-Hexamethyl-1,3-Dioxa-2-Silacyclopentane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for pharmaceutical and advanced material synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.410 - 1.415
Density (20°C)	0.92 - 0.96 g/mL

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