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Substance Name: Octadecamethyloctasiloxane
RN: 556-69-4
InChIKey: VWGDPBQTSZDFMX-UHFFFAOYSA-N

Molecular Formula

  • C18-H54-O7-Si8

Molecular Weight

  • 607.306
 
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Names and Synonyms

Results Name

  • Octadecamethyloctasiloxane

Synonyms

  • EINECS 209-138-8
  • Octadecamethyloctasiloxane

Systematic Names

  • Octadecamethyloctasiloxane
  • Octasiloxane, 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15,15-octadecamethyl-
  • Octasiloxane, octadecamethyl-

Registry Numbers

CAS Registry Number

  • 556-69-4

System Generated Number

  • 0000556694

Structure Descriptors

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

InChIKey

VWGDPBQTSZDFMX-UHFFFAOYSA-N

Smiles

O([Si](O[Si](O[Si](O[Si](C)(C)C)(C)C)(C)C)(C)C)[Si](O[Si](O[Si](O[Si](C)(C)C)(C)C)(C)C)(C)C

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 7.7 (none)   EXP
Water Solubility 2.68E-08 mg/L 25 EST
Vapor Pressure 0.00319 mm Hg 25 EXP
Henry's Law Constant 2.050 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.69E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.