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447269

Dodecamethylpentasiloxane

97%

Synonym(s):

1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane, DC 200 Fluid 2

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About This Item

Linear Formula:
(CH3)3SiO[Si(CH3)2O]3Si(CH3)3
CAS Number:
141-63-9
Molecular Weight:
384.84
NACRES:
NA.22
PubChem Substance ID:
24868328
UNSPSC Code:
12352103
EC Number:
205-492-2
MDL number:
MFCD00039795
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vapor pressure

<1 mmHg ( 20 °C)

Quality Segment

100

assay

97%

refractive index

n20/D 1.392 (lit.)

bp

230 °C (lit.)

mp

−81 °C (lit.)

density

0.875 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/C12H36O4Si5/c1-17(2,3)13-19(7,8)15-21(11,12)16-20(9,10)14-18(4,5)6/h1-12H3

InChI key

FBZANXDWQAVSTQ-UHFFFAOYSA-N

General description

Dodecamethylpentasiloxane is an organosilicon compound that is used as a reactant or as a solvent in organic synthesis. It is also used as a precursor compound to synthesize useful compounds, such as straight-chain linear polydimethylsiloxanes (PDMS), which are widely used in industrial applications such as coatings, adhesives, and elastomers.

Application

  • Adsorption Characteristics of Dodecamethylpentasiloxane from Landfill Leachate: This study investigates the adsorption behavior of dodecamethylpentasiloxane in municipal solid waste, crucial for environmental chemists and waste management specialists (Q Kong et al., 2022).
  • Toxicity of Silicone Oil: This research evaluates the cytotoxicity of liquid low molecular weight cyclosiloxanes including dodecamethylpentasiloxane, significant for drug discovery chemists considering silicone oil applications (Y Chen et al., 2021).
  • Bioaccumulation of Volatile Methylsiloxanes: Review of how volatile methylsiloxanes like dodecamethylpentasiloxane bioaccumulate in aquatic ecosystems, useful for environmental scientists and regulatory bodies (F Bernardo et al., 2022).
  • Solid MRI Contrast Agents: Describes the use of dodecamethylpentasiloxane as a contrast agent for in vivo oxygen sensing, relevant to biomedical research and materials science (VH Liu et al., 2014).
  • Effective Removal of Methyl Siloxane by Sewage Sludge Microbes: Discusses biodegradation of dodecamethylpentasiloxane, pertinent for environmental chemists and waste treatment research (Y Wang et al., 2019).

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Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

186.8 °F - closed cup

flash_point_c

86 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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