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Substance Name: Hexamethyldisiloxane
RN: 107-46-0
UNII: D7M4659BPU
InChIKey: UQEAIHBTYFGYIE-UHFFFAOYSA-N

Note

  • Glow-discharg polymer.

Classification Code

  • Skin / Eye Irritant

Molecular Formula

  • C6-H18-O-Si2

Molecular Weight

  • 162.3792
 
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Names and Synonyms

Name of Substance

  • Disiloxane, hexamethyl-
  • Hexamethyldisiloxane

Synonyms

  • AI3-51466
  • Belsil DM 0.65
  • Bis(trimethylsilyl)ether
  • Bis(trimethylsilyl)oxide
  • Bis-trimethylsilyl oxide
  • Bistrimethylsilyl ether
  • CCRIS 1325
  • Disiloxane, hexamethyl-
  • EC 203-492-7
  • EINECS 203-492-7
  • Fluka AG
  • Hexamethyl disiloxane
  • Hexamethyldisiloxane
  • HMS
  • HSDB 5378
  • KF 96L
  • NSC 43346
  • OS 10
  • Oxybis(trimethylsilane)
  • RTECS KD3598000
  • Silane, oxybis(trimethyl-
  • SWS-F 221
  • UNII-D7M4659BPU

Systematic Names

  • Disiloxane, 1,1,1,3,3,3-hexamethyl-
  • Disiloxane, hexamethyl-
  • Hexamethyldisiloxane

Superlist Names

  • Disiloxane, hexamethyl-
  • Hexamethyldisiloxane

Registry Numbers

CAS Registry Number

  • 107-46-0

FDA UNII

  • D7M4659BPU

Other Registry Number

  • 864719-97-1

System Generated Number

  • 0000107460

Structure Descriptors

InChI

1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3

InChIKey

UQEAIHBTYFGYIE-UHFFFAOYSA-N

Smiles

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

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LDLo oral 50gm/kg (50000mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 30, Pg. 332, 1948.
mouse LD50 intraperitoneal 4500mg/kg (4500mg/kg)   Russian Chemical Reviws Vol. 38, Pg. 975, 1969.
rabbit LD50 skin 16mL/kg (16mL/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITH APPROPRIATE ANESTHESIA

BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 12, Pg. 590, 1993.
rat LC50 inhalation 15956ppm/4H (15956ppm) BEHAVIORAL: ATAXIA

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
National Technical Information Service. Vol. OTS0573658,
rat LDLo intraperitoneal 1825mg/kg (1825mg/kg)   National Technical Information Service. Vol. OTS0572636,
rat LDLo oral 8mL/kg (8mL/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 12, Pg. 590, 1993.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -6.60E+01 deg C   EXP
Boiling Point 99 deg C   EXP
log P (octanol-water) 4.2 (none)   EXP
Water Solubility 0.93 mg/L 25 EXP
Henry's Law Constant 0.0453 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 1.38E-12 cm3/molecule-sec 24 EXP

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