CAS #:

Linear Formula:


MDL Number:


EC No.:



(2N) 99% Pentamethyldisilane
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(3N) 99.9% Pentamethyldisilane
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(4N) 99.99% Pentamethyldisilane
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(5N) 99.999% Pentamethyldisilane
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Pentamethyldisilane Properties (Theoretical)

Compound Formula C5H16Si2
Molecular Weight 132.35
Appearance Colorless liquid
Melting Point N/A
Boiling Point 98 - 99°C
Density 0.722 at 25 °C
Solubility in H2O N/A
Exact Mass 132.079054
Monoisotopic Mass 132.079054

Pentamethyldisilane Health & Safety Information

Signal Word Danger
Hazard Statements H225
Hazard Codes F
Risk Codes 11
Safety Statements 7/9-16-33
RTECS Number N/A
Transport Information UN 1993 3/PG 2
WGK Germany 3

About Pentamethyldisilane

Pentamethyldisilane is one of numerous organo-metallic compounds sold by American Elements under the trade name AE Organo-Metallics™ for uses requiring non-aqueous solubility such as recent solar energy and water treatment applications. Similar results can sometimes also be achieved with Nanoparticles and by thin film deposition. Note American Elements additionally supplies many materials as solutions. Pentamethyldisilane is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Additional technical, research and safety information is available.

Pentamethyldisilane Synonyms

dimethylsilyl(trimethyl)silane; Disilane, pentamethyl-; dimethyl(trimethylsilyl)silicon; 1,1,1,2,2-Pentamethyldisilane

Chemical Identifiers

Linear Formula (CH3)3SiSi(CH3)2H
MDL Number MFCD03427188
EC No. N/A
Beilstein/Reaxys No. N/A
Pubchem CID 136637
IUPAC Name dimethylsilyl(trimethyl)silane
InchI Identifier InChI=1S/C5H16Si2/c1-6(2)7(3,4)5/h6H,1-5H3

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Silicon products. Silicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. Silicon Bohr MoleculeThe number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s2 3p2. The silicon atom has a radius of 111 pm and a Van der Waals radius of 210 pm. Silicon was discovered and first isolated by Jöns Jacob Berzelius in 1823. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, exceeded only by oxygen. The metalloid is rarely found in pure crystal form and is usually produced from the iron-silicon alloy ferrosilicon. Elemental SiliconSilica (or silicon dioxide), as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Ultra high purity silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics industry.The name Silicon originates from the Latin word silex which means flint or hard stone.


May 23, 2024
Los Angeles, CA
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