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1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane

CAS Number
2554-06-5
EC Number
219-863-1
Chemical Formula
C12H24O4Si4
Molecular Weight
344.66 g/mol

Description

1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane (CAS 2554-06-5 ), commonly abbreviated as TTCS, is a cyclic siloxane monomer carrying four reactive vinyl groups. These vinyl functionalities make it a practical building block for hydrosilylation-curable silicone systems. It serves as an essential crosslinker in silicone polymer networks. In silicone rubber and elastomer manufacturing, TTCS acts as a multifunctional crosslinker, enabling controlled network density in molded and extruded silicone parts. Coatings formulators incorporate it into release coatings and conformal coatings where precise cure response and surface energy control are required. Adhesive and sealant producers use it to tune mechanical properties. This is particularly useful in addition-cure silicone formulations where flexibility and thermal stability are design targets. It also functions as a surface-modifying agent in silane coupling systems for industrial use. The material improves adhesion between silicone matrices and inorganic substrates such as glass or mineral fillers. TTCS is supplied as a clear liquid, typically at high purity grades suited for reactive silicone applications. Standard commercial offerings include technical-grade and high-purity research grades, with purity specifications commonly ranging from 95% to 98%+. Packaging options generally range from small laboratory quantities. Supply is available up to drum-scale for industrial processors. The product meets rigorous industrial requirements for consistency and performance in high-demand chemical manufacturing environments. Contact us for supply of 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane Request Quote

Other Names (Synonyms)

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane | 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane | Tetravinyltetramethylcyclotetrasiloxane | TTCS

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-43.5 °C
Boiling Point110 °C @ Press: 10 Torr
Density0.998 g/cm³
Flash Point210 °F
AppearanceColorless transparent liquid
ColorColorless to Almost colorless
Formliquid
Water Solubility7μg/L at 23℃
Vapor Pressure93.5Pa at 25℃
Refractive Indexn 20/D 1.435
Log P6.47

Safety & Handling

Warning
GHS07· IrritantGHS08· Health Hazard

Hazard Statements

H302Harmful if swallowed
H319Causes serious eye irritation

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P330Rinse mouth.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29319090
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)1