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Substance Name: Decamethylcyclopentasiloxane
RN: 541-02-6
UNII: 0THT5PCI0R
InChIKey: XMSXQFUHVRWGNA-UHFFFAOYSA-N

Classification Code

  • Skin / Eye Irritant

Molecular Formula

  • C10-H30-O5-Si5

Molecular Weight

  • 370.772
 
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Names and Synonyms

Name of Substance

  • Decamethylcyclopentasiloxane

Synonyms

  • 4-04-00-04128 (Beilstein Handbook Reference)
  • BRN 1800166
  • CCRIS 1328
  • Cyclic dimethylsiloxane pentamer
  • Cyclopentasiloxane, decamethyl-
  • Decamethylcyclopentasiloxane
  • Dekamethylcyklopentasiloxan
  • Dekamethylcyklopentasiloxan [Czech]
  • Dimethylsiloxane pentamer
  • Dow corning 345
  • Dow corning 345 fluid
  • EC 208-764-9
  • EINECS 208-764-9
  • HSDB 5683
  • KF 995
  • NUC silicone VS 7158
  • Polydimethylsiloxane
  • SF 1202
  • Silicon SF 1202
  • UNII-0THT5PCI0R
  • Union carbide 7158 silicone fluid
  • VS 7158

Systematic Names

  • Cyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl-
  • Cyclopentasiloxane, decamethyl-
  • Decamethylcyclopentasiloxane

Superlist Names

  • Cyclopentasiloxane, decamethyl-
  • Decamethylcyclopentasiloxane

Registry Numbers

CAS Registry Number

  • 541-02-6

FDA UNII

  • 0THT5PCI0R

System Generated Number

  • 0000541026

Structure Descriptors

InChI

1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3

InChIKey

XMSXQFUHVRWGNA-UHFFFAOYSA-N

Smiles

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

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin > 16mL/kg (16mL/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.
rat LC inhalation > 2700mg/m3/4H (2700mg/m3)   National Technical Information Service. Vol. OTS0572802,
rat LD50 oral > 24134mg/kg (24134mg/kg)   National Technical Information Service. Vol. OTS0572801,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -3.80E+01 deg C   EXP
Boiling Point 210 deg C   EXP
log P (octanol-water) 5.2 (none)   EXP
Water Solubility 0.017 mg/L 25 EXP
Henry's Law Constant 0.306 atm-m3/mole 23 EXP
Atmospheric OH Rate Constant 1.55E-12 cm3/molecule-sec 25 EXP

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