CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Liquid |
|---|---|
| Color/Form | Colorless liquid |
| Boiling Point | 230 °C |
| Melting Point | -80 °C |
| Solubility | In water, 7.04X10-5 mg/L at 25 °C |
| Density | 0.8755 g/cu cm at 20 °C |
| Vapor Pressure | 4.50X10-2 mm Hg at 25 °C (extrapolated) |
| LogP | log Kow = 9.41 |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating vapors. |
| Viscosity | Maintains about the same viscosity over a wide temperature range |
| Heat of Vaporization | 50.3 kJ/mol |
| Refractive Index | Index of refraction: 1.3925 at 20 °C/D |
| Kovats Retention Index | 1202.9 1176 |
| Other Experimental Properties | Stable. Inert to most chemical reagents and rubber |
| Chemical Classes | Metals -> Metalloid Compounds (Silicon) |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 384.84 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 8 |
| Exact Mass | 384.14599230 g/mol |
| Monoisotopic Mass | 384.14599230 g/mol |
| Topological Polar Surface Area | 36.9 Ų |
| Heavy Atom Count | 21 |
| Formal Charge | 0 |
| Complexity | 313 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Dodecamethylpentasiloxane is an organosiloxane that is pentasiloxane in which all the hydrogens have been replaced by methyl groups. Metabolite observed in cancer metabolism. It has a role as a human metabolite.