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Substance Name: Hexadecamethylcyclooctasiloxane
RN: 556-68-3
UNII: 2YAW49T07J
InChIKey: XKJMJYZFAWYREL-UHFFFAOYSA-N

Molecular Formula

  • C16-H48-O8-Si8

Molecular Weight

  • 593.235
 
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Names and Synonyms

Name of Substance

  • Hexadecamethylcyclooctasiloxane

Synonyms

  • EINECS 209-137-2
  • UNII-2YAW49T07J

Systematic Names

  • Cyclooctasiloxane, hexadecamethyl-
  • Hexadecamethylcyclooctasiloxane

Registry Numbers

CAS Registry Number

  • 556-68-3

FDA UNII

  • 2YAW49T07J

System Generated Number

  • 0000556683

Structure Descriptors

InChI

1S/C16H48O8Si8/c1-25(2)17-26(3,4)19-28(7,8)21-30(11,12)23-32(15,16)24-31(13,14)22-29(9,10)20-27(5,6)18-25/h1-16H3

InChIKey

XKJMJYZFAWYREL-UHFFFAOYSA-N

Smiles

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

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 31.5 deg C   EXP
Boiling Point 290 deg C   EXP
log P (octanol-water) 7.570 (none)   EST
Water Solubility 3.97E-04 mg/L 25 EST
Henry's Law Constant 0.311 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.39E-12 cm3/molecule-sec 25 EST

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