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Safety Information

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

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

370908-VAR:
370908-BULK:
370908-25G:
370908-5G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP6550
MKCJ8788
MKCC8602
MKCB0201V
MKBZ1646V

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Tris(triethylsilyl)silane

Sigma-Aldrich

736856

Tris(triethylsilyl)silane

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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