1,1,3,3-Tetramethyldisiloxane, 97%

Name: 1,1,3,3-Tetramethyldisiloxane, 97%
Brand: Vaqora Chemicals
SKU: VQ-011093

About 1,1,3,3-Tetramethyldisiloxane, 97%

Listed under CAS 3277-26-7, 1,1,3,3-Tetramethyldisiloxane is an organosilicon compound available from Vaqora Chemicals at a purity of 97%. With the molecular formula C4H12OSi2, it has a molar mass of 132.31 g/mol. Alternative names: sym-Tetramethyldisiloxane and ((CH3)2SiH)2O.

It is supplied as a clear colourless liquid. Reported physical data include a density of 0.76 g/mL. Store in a cool, well-ventilated place, away from sources of ignition, with the container tightly sealed. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis, fine chemical synthesis and polymer and resin production. Our customers for this product work in pharmaceutical manufacturing, academic and industrial research and polymers and plastics.

Standard pack sizes are 25 mL, 100 g, 25 kg and 140 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
Fine chemical synthesis
Polymer & resin production

Industries

Specifications & identifiers

Chemical identifiers
Product name	1,1,3,3-Tetramethyldisiloxane, 97%
Catalogue No.	VQ-011093
CAS Number	3277-26-7
Molecular formula	C₄H₁₂OSi₂
Molecular weight	132.31 g/mol
Exact mass	132.0427
Purity / assay	97%
HSN code	29319090
InChIKey	KWEKXPWNFQBJAY-UHFFFAOYSA-N
SMILES	C[Si](C)O[Si](C)C
PubChem CID	6327482

Physical properties
Physical form	Liquid
Appearance	Clear colourless liquid
Density	0.76 g/mL
H-bond donors / acceptors	0 / 1
TPSA	9.2 Å²
Synonyms	1,1,3,3-Tetramethyldisiloxane, sym-Tetramethyldisiloxane, ((CH3)2SiH)2O, (CH3)2HSiOSiH(CH3)2, Bis(dimethylsilyl) ether, Dimethylsilyl ether, Disiloxane, tetramethyl-, Bis(dimethylsilyl) oxide, 1,3-Dihydrotetramethyldisiloxane, LS 7040, T 2030, Siloxane HSi2

Safety & hazard information (GHS)

Flammable

Health hazard

Signal word: Danger

Hazard statements

H225Highly flammable liquid and vapor

Precautionary statements: P203, P210, P233, P240, P241, P242, P243, P280, P303 + P361 + P353, P318, P370 + P378, P403 + P235, P405, P501

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 1,1,3,3-Tetramethyldisiloxane, 97%?

The CAS Registry Number of 1,1,3,3-Tetramethyldisiloxane, 97% is 3277-26-7. It is also known as 1,1,3,3-Tetramethyldisiloxane, sym-Tetramethyldisiloxane, ((CH3)2SiH)2O.

What is the molecular formula and molecular weight of 1,1,3,3-Tetramethyldisiloxane, 97%?

1,1,3,3-Tetramethyldisiloxane, 97% has the molecular formula C4H12OSi2 and a molecular weight of 132.31 g/mol.

Which grade and pack sizes of 1,1,3,3-Tetramethyldisiloxane, 97% can I order?

We supply 1,1,3,3-Tetramethyldisiloxane, 97% in (97%) grade, in 25 mL, 100 g, 25 kg, 140 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1,1,3,3-Tetramethyldisiloxane, 97%?

Yes. Every lot of 1,1,3,3-Tetramethyldisiloxane, 97% 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 1,1,3,3-Tetramethyldisiloxane, 97% be shipped internationally?

Yes. 1,1,3,3-Tetramethyldisiloxane, 97% 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.