1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% 16066-09-4

Name: 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%
Brand: Vaqora Chemicals
SKU: VQ-011092

About 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%

Listed under CAS 16066-09-4, 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane is an organosilicon compound available from Vaqora Chemicals at a purity of 96%. Formula C8H24O3Si4, molecular weight 280.61 g/mol. It is also known as Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl- or Bis(trimethylsiloxy)dimethyldisiloxane.

The product is provided as a liquid. Literature values give a density of 0.863. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane in 5 g, 25 g, 100 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%
Catalogue No.	VQ-011092
CAS Number	16066-09-4
Molecular formula	C₈H₂₄O₃Si₄
Molecular weight	280.61 g/mol
Exact mass	280.0803
Purity / assay	96%
HSN code	29242990
InChIKey	OHSYWAVRSCQMHG-UHFFFAOYSA-N
SMILES	C[Si](O[Si](C)O[Si](C)(C)C)O[Si](C)(C)C
PubChem CID	6327318

Physical properties
Physical form	Liquid
Appearance	Liquid
Density	0.863
H-bond donors / acceptors	0 / 3
TPSA	27.7 Å²
Synonyms	1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-, Bis(trimethylsiloxy)dimethyldisiloxane, 3H,5H-Octamethyltetrasiloxane, methyl-[methyl(trimethylsilyloxy)-$l^{3}, 1,1,1,3,5,7,7,7-octamethyl-tetrasiloxane, Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-,, 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, technical, >=95% (GC), methyl-[methyl(trimethylsilyloxy)-$l^{3-silanyl]oxy-trimethylsilyloxysilicon

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Warning

Hazard statements

H226Flammable liquid and vapor
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P264 + P265, P271, P280, P302 + P352, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P233, P403 + P235, P405

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%?

The CAS Registry Number of 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% is 16066-09-4. It is also known as 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-, Bis(trimethylsiloxy)dimethyldisiloxane.

What is the molecular formula and molecular weight of 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%?

1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% has the molecular formula C8H24O3Si4 and a molecular weight of 280.61 g/mol.

Which grade and pack sizes of 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% can I order?

We supply 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% in (96%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98%?

Yes. Every lot of 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% be shipped internationally?

Yes. 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.