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Organosilicon Compounds & Silanes

Dodecamethylpentasiloxane

Available on request

Order Dodecamethylpentasiloxane (CAS 141-63-9) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-041205.

Pack sizes
Dodecamethylpentasiloxane chemical structure
CAS number141-63-9
FormulaC12H36O4Si5
Molar mass384.84 g/mol
InChIKeyFBZANXDWQAVSTQ-UHFFFAOYSA-N
IUPAC namebis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane

About Dodecamethylpentasiloxane

Zemixal supplies Dodecamethylpentasiloxane within its pharma Intermediates & Building Blocks portfolio. Identity at a glance: CAS 141-63-9, formula C12H36O4Si5 and molar mass 384.84 g/mol.

Use cases we see most often

  • Organic synthesis
  • API synthesis

Safe handling

Hazard communication follows GHS (Warning: H315, H319, H335 and H413). Our SDS lists exposure controls and first-aid measures.

Available as 100 mg, 250 mg, 1 g and 5 g. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Organic synthesis
  • API synthesis

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Dodecamethylpentasiloxane
Product nameDodecamethylpentasiloxane
Catalogue numberZX-041205
CAS number141-63-9
IUPAC namebis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane
Molecular formulaC12H36O4Si5
Molar mass384.84 g/mol
Exact mass384.146
H-bond donors / acceptors0 / 4
Topological polar surface area36.9 Ų
InChIKeyFBZANXDWQAVSTQ-UHFFFAOYSA-N
SMILESC[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
PubChem CID8853
Synonyms1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane, Pentasiloxane, dodecamethyl-, Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-, Silicone liquid, 1,1,1,3,3,5,5,7,7,9,9,9Dodecamethylpentasiloxane, Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9dodecamethyl, bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethyl-silane, Pentasiloxane,1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-, 2,2,4,4,6,6,8,8,10,10-decamethyl-3,5,7,9-tetraoxa-2,4,6,8,10-pentasilaundecane, 1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane #

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P261, P264, P264 + P265, P271, P273, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 Dodecamethylpentasiloxane
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 Dodecamethylpentasiloxane

Which CAS number identifies Dodecamethylpentasiloxane?
Dodecamethylpentasiloxane is registered under CAS 141-63-9. You may also see it listed as 1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane, Pentasiloxane, dodecamethyl-, Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-. Our catalogue number for this item is ZX-041205.
What are the formula and molar mass of Dodecamethylpentasiloxane?
For Dodecamethylpentasiloxane, its formula is C12H36O4Si5 and its molar mass is 384.84 g/mol. The systematic (IUPAC) name is bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane. InChIKey FBZANXDWQAVSTQ-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Dodecamethylpentasiloxane?
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 Dodecamethylpentasiloxane?
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 Dodecamethylpentasiloxane to my country?
Yes. Because Dodecamethylpentasiloxane 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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