Silicones & Silicates
REACH
1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane
CAS Number
2554-06-5
EC Number
219-863-1
Abbreviation
TTCS
What is 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane?
1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane (CAS 2554-06-5), abbreviated TTCS, is a cyclic siloxane monomer carrying four reactive vinyl groups.
Where is 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane used?
- Silicone systems: building block for hydrosilylation-curable formulations
- Silicone polymer networks: crosslinker
- Silicone rubber and elastomer manufacturing: multifunctional crosslinker enabling controlled network density in molded and extruded parts
- Release and conformal coatings: cure response and surface energy control
- Adhesives and sealants: mechanical property tuning
- Addition-cure silicone formulations: flexibility and thermal stability
- Silane coupling systems: surface-modifying agent that improves adhesion between silicone matrices and inorganic substrates such as glass or mineral fillers.
Commercial specifications
- Purity specifications commonly 95% to 98%+
- Technical-grade and high-purity research grades
- Packaging from small laboratory quantities up to drum-scale
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
What are the physical properties of 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane?
Melting Point -43.5 °C
Boiling Point 110 °C @ Press: 10 Torr
Density 0.998 g/cm³
Flash Point 210 °F
Appearance Colorless transparent liquid
Color Colorless to Almost colorless
Form liquid
Water Solubility 7μg/L at 23℃
Vapor Pressure 93.5Pa at 25℃
Refractive Index n 20/D 1.435
Log P 6.47
How is 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H302 Harmful if swallowed
H319 Causes serious eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane?
HS Code 29319090
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 1