Description

1,3,5,7,9,11-Hexamethyl-1,3,5,7,9,11-Hexavinylcyclohexasiloxane is a specialized organosilicon compound belonging to the class of vinyl-functionalized cyclic siloxanes. This chemical serves as a critical high-purity reactive intermediate and cross-linking agent in advanced material synthesis. It is essential for manufacturers in the silicone polymers, specialty coatings, and electronics sectors who require precise molecular architecture and controlled reactivity to develop high-performance materials.

Application

• Silicone Elastomer & Rubber Cross-linking: Acts as a key reactive site for peroxide or platinum-catalyzed curing, enhancing the thermal stability and mechanical properties of high-performance silicone rubbers.
• Silicone Resin & Coating Modification: Used to introduce vinyl groups into silicone resin backbones, improving adhesion, cross-link density, and chemical resistance in protective and release coatings.
• Addition-Cure Liquid Silicone Rubber (LSR): A fundamental component in LSR formulations for injection molding, used in automotive, medical, and consumer goods applications.
• Electronic Encapsulants & Potting Compounds: Contributes to the formulation of silicones used to protect sensitive electronic components from moisture, thermal shock, and mechanical stress.
• Hybrid Organic-Inorganic Material Synthesis: Serves as a precursor for creating silsesquioxanes (POSS) and other hybrid materials with tailored properties for aerospace and optical applications.
• Adhesive & Sealant Formulations: Enhances the cure profile and final properties of high-strength silicone adhesives and sealants.

Basic Information

Product Name	1,3,5,7,9,11-Hexamethyl-1,3,5,7,9,11-Hexavinylcyclohexasiloxane
CAS No.	18304-82-0
Molecular Formula	C18H36O6Si6
Molecular Weight	529.0 g/mol
Synonyms	Hexavinylhexamethylcyclohexasiloxane; D3Vi; Cyclic Vinyl Siloxane; 1,3,5,7,9,11-Hexavinyl-1,3,5,7,9,11-hexamethylcyclohexasiloxane; 2,4,6,8,10,12-Hexavinyl-2,4,6,8,10,12-hexamethylcyclohexasiloxane; Vinyl D3; Cyclohexasiloxane, 1,3,5,7,9,11-hexamethyl-1,3,5,7,9,11-hexavinyl-
EINECS	Contact for details

Quality Control

Our production of 1,3,5,7,9,11-Hexamethyl-1,3,5,7,9,11-Hexavinylcyclohexasiloxane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and FTIR, to verify identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) 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 at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive; keep container tightly sealed when not in use. For long-term storage, consider under an inert atmosphere such as nitrogen to maintain purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.410 - 1.415
Density (20°C)	1.00 - 1.05 g/cm³
Water Content (KF)	≤ 0.1%

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