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Organosilicon Compounds & Silanes

Dimethylsiloxane, Ethylene Oxide Block Copolymer

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Dimethylsiloxane, Ethylene Oxide Block Copolymer (CAS 27306-78-1) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Dimethylsiloxane, Ethylene Oxide Block Copolymer chemical structure
CAS number27306-78-1
FormulaC13H34O4Si3
Molar mass338.66 g/mol
Physical formLiquid
InChIKeyJQRXTVACLHSVTF-UHFFFAOYSA-N
IUPAC name3-(2-methoxyethoxy)propyl-methyl-bis(trimethylsilyloxy)silane

About Dimethylsiloxane, Ethylene Oxide Block Copolymer

Zemixal supplies Dimethylsiloxane, Ethylene Oxide Block Copolymer within its pharma Intermediates & Building Blocks portfolio. Identity at a glance: CAS 27306-78-1, formula C13H34O4Si3 and molar mass 338.66 g/mol. It is handled as a liquid.

Common uses in the lab and plant

  • Organic synthesis
  • API synthesis

Handling and storage

Classified under GHS with signal word Warning and hazard statements H302, H312, H315 and H319. Read the SDS before first use.

Order it in 10 mL, 25 mL and 100 mL packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Organic synthesis
  • API synthesis

Applications

Pharmaceutical Manufacturing and QCPolymers, Plastics and RubberResearch Labs and Universities

Specifications and identifiers

Specifications of Dimethylsiloxane, Ethylene Oxide Block Copolymer
Product nameDimethylsiloxane, Ethylene Oxide Block Copolymer
Catalogue numberZX-018812
CAS number27306-78-1
IUPAC name3-(2-methoxyethoxy)propyl-methyl-bis(trimethylsilyloxy)silane
Molecular formulaC13H34O4Si3
Molar mass338.66 g/mol
Exact mass338.1765
Physical formLiquid
H-bond donors / acceptors0 / 4
Topological polar surface area36.9 Ų
InChIKeyJQRXTVACLHSVTF-UHFFFAOYSA-N
SMILESCOCCOCCC[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C
PubChem CID197160
SynonymsSilwet L 77, Polyethylene glycol monomethyl ether mono[3-[methylbis(trimethylsiloxy)silyl]propyl] ether, 3-(3-(2-Methoxyethoxy)propyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane

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
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P321, P330, P332 + P317, P337 + P317, P362 + P364, P391, 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 Dimethylsiloxane, Ethylene Oxide Block Copolymer
10 mLQuoted on request
25 mLQuoted on request
100 mLQuoted on request

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

Questions about Dimethylsiloxane, Ethylene Oxide Block Copolymer

Which CAS number identifies Dimethylsiloxane, Ethylene Oxide Block Copolymer?
Dimethylsiloxane, Ethylene Oxide Block Copolymer is registered under CAS 27306-78-1. You may also see it listed as Silwet L 77, Polyethylene glycol monomethyl ether mono[3-[methylbis(trimethylsiloxy)silyl]propyl] ether, 3-(3-(2-Methoxyethoxy)propyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane. Our catalogue number for this item is ZX-018812.
What are the formula and molar mass of Dimethylsiloxane, Ethylene Oxide Block Copolymer?
For Dimethylsiloxane, Ethylene Oxide Block Copolymer, its formula is C13H34O4Si3 and its molar mass is 338.66 g/mol. The systematic (IUPAC) name is 3-(2-methoxyethoxy)propyl-methyl-bis(trimethylsilyloxy)silane. InChIKey JQRXTVACLHSVTF-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Dimethylsiloxane, Ethylene Oxide Block Copolymer?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mL, 25 mL, 100 mL. Larger quantities and custom packing can be quoted on request.
Which documents come with Dimethylsiloxane, Ethylene Oxide Block Copolymer?
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 Dimethylsiloxane, Ethylene Oxide Block Copolymer to my country?
Yes. Because Dimethylsiloxane, Ethylene Oxide Block Copolymer 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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