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556-68-3

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556-68-3 Structure

556-68-3 Structure
IdentificationBack Directory
[Name]

hexadecamethylcyclooctasiloxane
[CAS]

556-68-3
[Synonyms]

Simethicone Impurity 18
hexadecamethylcyclooctasiloxane
Cyclooctasiloxane,2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-hexadecamethyl-
2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-Hexadecamethylcyclohexadecaneoctasiloxane
1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl-2,4,6,8,10,12,14,16-octaoxa-1,3,5,7,9,11,13,15-octasilacyclohexadecane
2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-hexadecamethyl-1,3,5,7,9,11,13,15-octaoxa-2,4,6,8,10,12,14,16-octasilacyclohexadecane
[EINECS(EC#)]

209-137-2
[Molecular Formula]

C16H48O8Si8
[MDL Number]

MFCD30725759
[MOL File]

556-68-3.mol
[Molecular Weight]

593.232
Chemical PropertiesBack Directory
[Melting point ]

31.5°C
[Boiling point ]

168°C/20mmHg(lit.)
[density ]

1.1770
[refractive index ]

1.4060
[storage temp. ]

Refrigerator
[solubility ]

Benzene, Chloroform (Slightly)
[form ]

solid
[color ]

Colourless to Off-White Oil
[EPA Substance Registry System]

Cyclooctasiloxane, hexadecamethyl- (556-68-3)
Safety DataBack Directory
[Symbol(GHS) ]

Corrosion (GHS05)
GHS05
[Signal word ]

Warning
[Hazard statements ]

H320
[Precautionary statements ]

P264-P337+P313-P305+P351+P338
[HS Code ]

2931.90.9010
Hazard InformationBack Directory
[Uses]

Hexadecamethylcyclooctasiloxane is a major component of the crude extract of Bacillus cereus S1 that exhibits antibacterial activity against five bacterial pathogens.
[Definition]

ChEBI: A macrocyclic organosiloxane composed from eight repeating Me2SiO units.
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