Description

1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane is a specialized organosilicon monomer featuring a cyclic trisiloxane core with reactive vinyl and methyl substituents. This unique structure makes it a critical precursor for synthesizing advanced silicone polymers and cross-linked networks. It is essential for manufacturers in the silicone elastomer, resin, and specialty coating industries who require materials with tunable mechanical properties and thermal stability.

Application

• Cross-linking Agent for high-performance silicone elastomers and rubbers (HTV, LSR).
• Key Monomer in the synthesis of vinyl-functional silicone resins and prepolymers.
• Reactive Intermediate for creating custom siloxane copolymers via hydrosilylation or platinum-catalyzed reactions.
• Surface Modification of inorganic materials to introduce vinyl groups for further functionalization.
• Component in release coatings, pressure-sensitive adhesives, and encapsulants.
• Building Block for research and development of novel hybrid organic-inorganic materials.

Basic Information

Product Name	1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane
CAS No.	134733-45-2
Molecular Formula	C9H18O3Si3
Molecular Weight	258.49 g/mol
Synonyms	1,3,5-Trimethyl-1,3,5-trivinylcyclotrisiloxane; Vinylmethylcyclotrisiloxane; Cyclic Vinylmethylsiloxane Trimer; D3Vi; V3 D3; 2,4,6-Trimethyl-2,4,6-trivinylcyclotrisiloxane; Tris(vinylmethylsiloxane); 1,3,5-Trivinyl-1,3,5-trimethyl-cyclotrisiloxane
EINECS	Contact for details

Quality Control

Our 1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing (including GC, NMR, and Karl Fischer titration) to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%

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