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Organosilicon Compounds & Silanes

Octamethyltrisiloxane

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Order Octamethyltrisiloxane (CAS 107-51-7) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-041867.

Pack sizes
Octamethyltrisiloxane chemical structure
CAS number107-51-7
FormulaC8H24O2Si3
Molar mass236.53 g/mol
InChIKeyCXQXSVUQTKDNFP-UHFFFAOYSA-N
IUPAC namedimethyl-bis(trimethylsilyloxy)silane

About Octamethyltrisiloxane

Researchers and plant chemists source Octamethyltrisiloxane from Zemixal for routine and specialised work. Key data: CAS 107-51-7, formula C8H24O2Si3 and molar mass 236.53 g/mol.

Common uses in the lab and plant

  • Organic synthesis
  • API synthesis

Safe handling

Classified under GHS with signal word Warning and hazard statements H226 and H413. Read the SDS before first use.

Order it in 100 mg, 250 mg, 1 g and 5 g packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Organic synthesis
  • API synthesis

Applications

Specifications and identifiers

Specifications of Octamethyltrisiloxane
Product nameOctamethyltrisiloxane
Catalogue numberZX-041867
CAS number107-51-7
IUPAC namedimethyl-bis(trimethylsilyloxy)silane
Molecular formulaC8H24O2Si3
Molar mass236.53 g/mol
Exact mass236.1084
H-bond donors / acceptors0 / 2
Topological polar surface area18.5 Ų
InChIKeyCXQXSVUQTKDNFP-UHFFFAOYSA-N
SMILESC[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
PubChem CID24705
SynonymsTrisiloxane, octamethyl-, 1,1,1,3,3,5,5,5-Octamethyltrisiloxane, Pentamethyl(trimethylsilyloxy)disiloxane, Dimethylbis(trimethylsiloxy)silane, Pentamethyl(trimethylsiloxy)disiloxane, Dimethicone 350, Silicone oil PMX-200, Trisiloxane, 1,1,1,3,3,5,5,5-octamethyl-, Methylsilicone oil, Dimethylsilicone oil,, Hexamethyloxy disilane

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS02 Flammable
Flammable

Signal word Warning

  • H226Flammable liquid and vapor
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P210, P233, P240, P241, P242, P243, P273, P280, P303 + P361 + P353, P370 + P378, P403 + P235, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Octamethyltrisiloxane
100 mgQuoted on request
250 mgQuoted on request
1 gQuoted on request
5 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Octamethyltrisiloxane

Which CAS number identifies Octamethyltrisiloxane?
Octamethyltrisiloxane is registered under CAS 107-51-7. You may also see it listed as Trisiloxane, octamethyl-, 1,1,1,3,3,5,5,5-Octamethyltrisiloxane, Pentamethyl(trimethylsilyloxy)disiloxane. Our catalogue number for this item is ZX-041867.
What are the formula and molar mass of Octamethyltrisiloxane?
For Octamethyltrisiloxane, its formula is C8H24O2Si3 and its molar mass is 236.53 g/mol. The systematic (IUPAC) name is dimethyl-bis(trimethylsilyloxy)silane. InChIKey CXQXSVUQTKDNFP-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Octamethyltrisiloxane?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 100 mg, 250 mg, 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with Octamethyltrisiloxane?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Octamethyltrisiloxane to my country?
Yes. Because Octamethyltrisiloxane is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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