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ChemicalBook >> CAS DataBase List >> Octamethyltrisiloxane

Octamethyltrisiloxane

Octamethyltrisiloxane price.
  • $10 - $1300
  • Product name: Octamethyltrisiloxane
  • CAS: 107-51-7
  • MF: C8H24O2Si3
  • MW: 236.53
  • EINECS:203-497-4
  • MDL Number:MFCD00008264
  • Synonyms:DIMETHYLBIS(TRIMETHYLSILYLOXY)SILANE;POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED;POLY(DIMETHYLSILOXANE), 200(R) FLUID;[(CH3)3SiO]2Si(CH3)2;CO9816;Dimethylbis(trimethylsiloxy)silane;O9816;octamethyl-trisiloxan
13 prices
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  • AHH
  • AK Scientific
  • Chem-Impex
  • Oakwood
  • Sigma-Aldrich
  • TCI Chemical
  • TRC
Package
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  • 50g
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  • ManufacturerAHH
  • Product numberMT-20392
  • Product descriptionOctamethyltrisiloxane 97%
  • Packaging250g
  • Price$398
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ54523
  • Product descriptionOctamethyltrisiloxane
  • Packaging1g
  • Price$10
  • Updated2021-12-16
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  • ManufacturerChem-Impex
  • Product number40533
  • Product descriptionOctamethyltrisiloxane,98%(GC) 98%(GC)
  • Packaging25ML
  • Price$42.56
  • Updated2021-12-16
  • Buy
  • ManufacturerChem-Impex
  • Product number40533
  • Product descriptionOctamethyltrisiloxane,≥98%(GC)Hazmat ≥98%(GC)
  • Packaging100ML
  • Price$126.96
  • Updated2021-12-16
  • Buy
  • ManufacturerOakwood
  • Product numberS12475
  • Product descriptionOctamethyltrisiloxane 97%
  • Packaging5g
  • Price$10
  • Updated2021-12-16
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  • ManufacturerOakwood
  • Product numberS12475
  • Product descriptionOctamethyltrisiloxane 97%
  • Packaging25g
  • Price$15
  • Updated2021-12-16
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  • ManufacturerOakwood
  • Product numberS12475
  • Product descriptionOctamethyltrisiloxane 97%
  • Packaging500g
  • Price$168
  • Updated2021-12-16
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  • ManufacturerSigma-Aldrich
  • Product number235709
  • Product descriptionOctamethyltrisiloxane 98%
  • Packaging5ml
  • Price$45.8
  • Updated2024-03-01
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  • ManufacturerSigma-Aldrich
  • Product number469319
  • Product descriptionPoly(dimethylsiloxane) viscosity 1.0 cSt (25 °C)
  • Packaging50ml
  • Price$183
  • Updated2024-03-01
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  • ManufacturerSigma-Aldrich
  • Product number235709
  • Product descriptionOctamethyltrisiloxane 98%
  • Packaging100ml
  • Price$261
  • Updated2024-03-01
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  • ManufacturerTCI Chemical
  • Product numberO0257
  • Product descriptionOctamethyltrisiloxane >98.0%(GC)
  • Packaging25mL
  • Price$55
  • Updated2024-03-01
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  • ManufacturerTCI Chemical
  • Product numberO0257
  • Product descriptionOctamethyltrisiloxane >98.0%(GC)
  • Packaging100mL
  • Price$141
  • Updated2024-03-01
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  • ManufacturerTRC
  • Product numberO237150
  • Product descriptionOctamethyltrisiloxane
  • Packaging50g
  • Price$1300
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-20392 Octamethyltrisiloxane 97% 250g $398 2021-12-16 Buy
AK Scientific J54523 Octamethyltrisiloxane 1g $10 2021-12-16 Buy
Chem-Impex 40533 Octamethyltrisiloxane,98%(GC) 98%(GC) 25ML $42.56 2021-12-16 Buy
Chem-Impex 40533 Octamethyltrisiloxane,≥98%(GC)Hazmat ≥98%(GC) 100ML $126.96 2021-12-16 Buy
Oakwood S12475 Octamethyltrisiloxane 97% 5g $10 2021-12-16 Buy
Oakwood S12475 Octamethyltrisiloxane 97% 25g $15 2021-12-16 Buy
Oakwood S12475 Octamethyltrisiloxane 97% 500g $168 2021-12-16 Buy
Sigma-Aldrich 235709 Octamethyltrisiloxane 98% 5ml $45.8 2024-03-01 Buy
Sigma-Aldrich 469319 Poly(dimethylsiloxane) viscosity 1.0 cSt (25 °C) 50ml $183 2024-03-01 Buy
Sigma-Aldrich 235709 Octamethyltrisiloxane 98% 100ml $261 2024-03-01 Buy
TCI Chemical O0257 Octamethyltrisiloxane >98.0%(GC) 25mL $55 2024-03-01 Buy
TCI Chemical O0257 Octamethyltrisiloxane >98.0%(GC) 100mL $141 2024-03-01 Buy
TRC O237150 Octamethyltrisiloxane 50g $1300 2021-12-16 Buy

Properties

Melting point :-82 °C (lit.)
Boiling point :153 °C (lit.)
Density :0.82 g/mL at 25 °C (lit.)
vapor density :>1 (vs air)
vapor pressure :5.3hPa at 25℃
refractive index :n20/D 1.384(lit.)
Flash point :99 °F
storage temp. :Inert atmosphere,Room Temperature
solubility :Chloroform (Slightly), DMSO, Methanol (Slightly)
form :liquid
Specific Gravity :0.82
color :Colourless to Pale Yellow
Water Solubility :34μg/L at 23℃
Hydrolytic Sensitivity :1: no significant reaction with aqueous systems
Merck :14,6748
BRN :1753063
Dielectric constant :2.3（20℃）
Stability :Hygroscopic
LogP :6.6 at 25.3℃
CAS DataBase Reference :107-51-7(CAS DataBase Reference)
EPA Substance Registry System :Trisiloxane, octamethyl- (107-51-7)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242 Use only non-sparking tools.
P243 Take precautionary measures against static discharge.

Description

Octamethyltrisiloxane is a linear silicone oligomer. It is used as an excipient Dimethicones in pharmaceutical and cosmetic applications can provide long lasting lubricant, smooth feel and spreads easily. Studies demonstrate that it is able to maintain the conformational stability of certain adsorbed proteins such as bovine serum albumin (BSA). Used in the methylation of mercury(II) salts.

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