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370908

Sigma-Aldrich

Tris(trimethylsiloxy)silane

≥98%

Synonym(s):

1,1,1,5,5,5-Hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane

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About This Item

Linear Formula:
[(CH3)3SiO]3SiH
CAS Number:
1873-89-8
Molecular Weight:
296.66
Beilstein:
1772735
EC Number:
217-497-7
MDL number:
MFCD00054865
UNSPSC Code:
12352103
PubChem Substance ID:
24863087
NACRES:
NA.22

Quality Level

100

Assay

≥98%

form

liquid

refractive index

n20/D 1.386 (lit.)

bp

185 °C (lit.)

density

0.852 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/C9H28O3Si4/c1-14(2,3)10-13(11-15(4,5)6)12-16(7,8)9/h13H,1-9H3

InChI key

FDWGGTLVZGTDGQ-UHFFFAOYSA-N

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Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H226

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

131.0 °F - closed cup

Flash Point(C)

55 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP6550
MKCJ8788
MKCC8602
MKCB0201V
MKBZ1646V

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Alyssa F Schneider et al.
Dalton transactions (Cambridge, England : 2003), 48(36), 13599-13606 (2019-08-29)
Improved methods to control silicone synthesis are required due to the sensitivity of siloxane bonds to acid/base-mediated chain redistribution/depolymerization. The Piers-Rubinsztajn reaction employs tris(pentafluorophenyl)borane as an efficient catalyst (<0.1 mol%) for siloxane bond formation from hydro- and alkoxysilanes - typical
Hermann Fromme et al.
Environment international, 85, 292-298 (2015-10-11)
Human biomonitoring is a valid method to determine exposure, identify time trends, and monitor the effects of restrictions and measures. To characterize the recent exposure of Germans to persistent or emerging substances, we analyzed 4 dechloranes, 33 polychlorinated naphthalenes (PCNs)

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