Home Categories Chemical Reagents Octamethyltrisiloxane
A6554212

Octamethyltrisiloxane , ≥97.0%(GC) , 107-51-7

CAS NO.:107-51-7

Empirical Formula: C8H24O2Si3

Molecular Weight: 236.53

MDL number: MFCD01325012

EINECS: 203-497-4

Pack Size Price Stock Quantity
25ML RMB69.60 In Stock
100ML RMB229.60 In Stock
500ml RMB887.20 In Stock
2.5L RMB3519.20 In Stock
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Update time: 2022-07-08

PRODUCT 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℃

Description and Uses

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.

Safety

Symbol(GHS) 
GHS02
Signal word  Warning
Hazard statements  H226
Precautionary statements  P210-P233-P240-P241-P242-P243
Risk Statements  10
Safety Statements  23-24/25
RIDADR  UN 1993 3/PG 3
WGK Germany  3
10-21
TSCA  Yes
HazardClass  3.2
PackingGroup  III
HS Code  29319090

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