Description

2,2,4,4,6,6,8,8-Octamethyl-1-Oxa-2,4,6,8-Tetrasilacyclooctane is a high-purity organosilicon cyclic compound, valued for its role as a versatile chemical building block and precursor in advanced material synthesis. Its unique cyclic siloxane structure makes it a critical intermediate for creating silicone polymers with tailored properties. This product is essential for manufacturers and R&D facilities in the silicone, electronics, and specialty chemical industries seeking to develop high-performance materials.

Application

• Silicone Polymer Synthesis: A key monomer or intermediate for producing specialty silicone resins, elastomers, and fluids with specific thermal and mechanical properties.
• Surface Modification Agent: Used to impart hydrophobic or release characteristics to surfaces in coatings and textiles.
• Electronics Encapsulation: Serves as a precursor for silicone gels and encapsulants that protect sensitive electronic components.
• Crosslinking Agent: Functions in formulations to create crosslinked silicone networks for adhesives, sealants, and rubbers.
• Research & Development: A valuable reagent for synthesizing novel organosilicon compounds and exploring new material science applications.
• Additive for Specialty Lubricants: Can be incorporated into formulations to enhance the performance of high-temperature lubricants.

Basic Information

Product Name	2,2,4,4,6,6,8,8-Octamethyl-1-Oxa-2,4,6,8-Tetrasilacyclooctane
CAS No.	24590-70-3
Molecular Formula	C8H24O1Si4
Molecular Weight	260.61 g/mol
Synonyms	Octamethylcyclotetrasiloxane, D4H; 1-Oxa-2,4,6,8-tetrasilacyclooctane, 2,2,4,4,6,6,8,8-octamethyl-; Cyclic Tetramer of Methylhydrogensiloxane; Methylhydrogensiloxane Tetramer; OMCTS-H; Tetrakis(dimethylsiloxy)silane (alternative representation); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 2,2,4,4,6,6,8,8-Octamethyl-1-Oxa-2,4,6,8-Tetrasilacyclooctane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, bases, and oxidizing agents. Recommended storage temperature is 15-25°C. The container must be kept tightly sealed to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	Contact for details
Density (20°C)	Contact for details

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