Description

2,4,6,8-Tetravinyl-2,4,6,8-Tetramethylcyclotetrasiloxane is a high-purity organosilicon monomer featuring a cyclic siloxane core with reactive vinyl and methyl substituents. This compound is a critical building block for the synthesis of advanced silicone polymers and cross-linked networks, offering precise control over material properties. It is essential for manufacturers in the silicone elastomer, resin, and specialty coatings industries seeking to enhance product performance through tailored molecular architecture.

Application

• Cross-linking Agent: A key component in the production of heat-cured (HCR) and liquid silicone rubbers (LSR) for automotive, medical, and consumer goods.
• Silicone Resin Precursor: Used in the synthesis of high-performance silicone resins for protective coatings, electrical insulation, and high-temperature composites.
• Hydrosilylation Reactions: Serves as a versatile substrate in platinum-catalyzed addition reactions to create custom siloxane structures.
• Modification of Silicone Fluids: Imparts vinyl functionality to polydimethylsiloxane (PDMS) chains, enabling further chemical modification and curing.
• Release Coatings & Adhesives: A functional monomer in formulations for pressure-sensitive adhesives (PSAs) and release liners.
• Optical & Electronic Materials: Employed in the development of silicones for LED encapsulation, optical lenses, and dielectric gels due to its purity and reactivity.

Basic Information

Product Name	2,4,6,8-Tetravinyl-2,4,6,8-Tetramethylcyclotetrasiloxane
CAS No.	2554-06-5
Molecular Formula	C12H24O4Si4
Molecular Weight	344.66 g/mol
Synonyms	Cyclic Vinylmethylsiloxane; Tetramethyltetravinylcyclotetrasiloxane; 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane; D4Vi; Vinyl D4; Tetravinyltetramethylcyclotetrasiloxane; 1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane; Cyclic vinylmethylsiloxane tetramer
EINECS	219-855-6

Quality Control

Our 2,4,6,8-Tetravinyl-2,4,6,8-Tetramethylcyclotetrasiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture. Store 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%
Refractive Index (n20D)	1.430 - 1.435
Density (20°C)	0.98 - 1.02 g/mL

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