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Octamethylcyclotetrasiloxane CAS 556-67-2

Octamethylcyclotetrasiloxane CAS 556-67-2(1)
Octamethylcyclotetrasiloxane CAS 556-67-2(2)
Octamethylcyclotetrasiloxane CAS 556-67-2(3)
Octamethylcyclotetrasiloxane CAS 556-67-2(1)
Octamethylcyclotetrasiloxane Quick Detail:
  • English name: Octamethylcyclotetrasiloxane
  • CAS Number: 556-67-2
  • Molecular Formula: C8H24O4Si4
  • Molecular Weight: 296.62
  • EINECS Number: 209-136-7
  • Assay: 99.9%min
  • Appearance: Colorless clear liquid
Octamethylcyclotetrasiloxane Specification:
Appearance Colorless Clear Liquid
Purity 99.999999%
Density 0.956 g/mL at 25 °C(lit.)
M.P. 17-18 °C(lit.)
B.P. 175-176 °C(lit.)
Refractive Index n20/D 1.396(lit.)
Flash Point 140 °F
Octamethylcyclotetrasiloxane Application:
  • As a high purity ALD/CVD precursor product,it is one of the core source materials of the entire electronic industry system.
  • It is widely used in many aspects of electronic device manufacturing such as computer chips, solar cells, mobile communications, satellite navigation, and spacecraft.
Octamethylcyclotetrasiloxane Package:

190kg/drum 950kg/IBC drum or Customized according to customer requirements


This product should be sealed in a cool and dry place.

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