Chemical Properties of Octadecamethyloctasiloxane (CAS 556-69-4)

Octadecamethyloctasiloxane

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InChI
InChI=1S/C18H54O7Si8/c1-26(2,3)19-28(7,8)21-30(11,12)23-32(15,16)25-33(17,18)24-31(13,14)22-29(9,10)20-27(4,5)6/h1-18H3
InChI Key
VWGDPBQTSZDFMX-UHFFFAOYSA-N
Formula
C18H54O7Si8
SMILES
C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
Molecular Weight1
607.30
CAS
556-69-4
Sources

Physical Properties

Property Value Unit Source
logPoct/wat 6.98 Crippen Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ΔvapH 67.70 kJ/mol 470.5 NIST
ΔvapH 68.40 kJ/mol 525.0 NIST

Similar Compounds

Dodecamethylpentasiloxane. Eicosamethylnonasiloxane. Cyclohexasiloxane, dodecamethyl-. Cyclohexacosasiloxane, dopentacontamethyl. Cyclodocosasiloxane, tetratetracontamethyl. Cycloeicosasiloxane, tetracontamethyl. Cyclohentriacontasiloxane, dohexacontamethyl. CYCLODECASILOXANE, EICOSAMETHYL-. Cycloheneicosasiloxane, dotetracontamethyl. Cyclotetradecasiloxane, octacosamethyl. Cyclotetrasiloxane, octamethyl-. Cyclononacosasiloxane, octapentacontamethyl. Hexadecamethylcyclooctasiloxane. Cyclotridecasiloxane, hexacosamethyl. Cyclotetrasiloxane, heptamethyl-.

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