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Substance Name: Octadecamethylcyclononasiloxane
RN: 556-71-8
UNII: 28W8JYZ0C6
InChIKey: ISXOGOLHEGHGQF-UHFFFAOYSA-N

Molecular Formula

  • C18-H54-O9-Si9

Molecular Weight

  • 667.39
 
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Names and Synonyms

Name of Substance

  • Octadecamethylcyclononasiloxane

Synonyms

  • Octadecamethylcyclononasiloxane
  • UNII-28W8JYZ0C6

Systematic Name

  • Cyclononasiloxane, octadecamethyl-

Registry Numbers

CAS Registry Number

  • 556-71-8

FDA UNII

  • 28W8JYZ0C6

System Generated Number

  • 0000556718

Structure Descriptors

InChI

1S/C18H54O9Si9/c1-28(2)19-29(3,4)21-31(7,8)23-33(11,12)25-35(15,16)27-36(17,18)26-34(13,14)24-32(9,10)22-30(5,6)20-28/h1-18H3

InChIKey

ISXOGOLHEGHGQF-UHFFFAOYSA-N

Smiles

[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 8.190 (none)   EST
Water Solubility 1.09E-04 mg/L 25 EST
Vapor Pressure 1.77E-05 mm Hg 25 EXP
Henry's Law Constant 0.428 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.