| | Identification | Back Directory |  | [Name] 
 OCTADECAMETHYLCYCLONONASILOXANE
 |  | [CAS] 
 556-71-8
 |  | [Synonyms] 
 Octadecamethylnonasiloxane
 OCTADECAMETHYLCYCLONONASILOXANE
 Octadecamethylcyclooctadecanenonasiloxane
 Cyclononasiloxane, 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-
 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane
 |  | [Molecular Formula] 
 C18H54O9Si9
 |  | [MOL File] 
 556-71-8.mol
 |  | [Molecular Weight] 
 667.39
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 -27°C(lit.)
 |  | [Boiling point ] 
 188°C/20mmHg(lit.)
 |  | [density ] 
 0.98±0.1 g/cm3(Predicted)
 |  | [refractive index ] 
 1.4050 to 1.4090
 |  | [storage temp. ] 
 Refrigerator, Under inert atmosphere
 |  | [solubility ] 
 Acetonitrile (Slightly), Benzene (Soluble)
 |  | [form ] 
 Oil
 |  | [color ] 
 Colourless to Pale Yellow
 |  | [EPA Substance Registry System] 
 Cyclononasiloxane, octadecamethyl- (556-71-8)
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Octamethylcyclononasiloxane is employed as a antibacterial agent. It is particularly effective against marine Bacillus cereus.
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