CAS 3277-26-7

1,1,3,3-Tetramethyldisiloxane

Description:

1,1,3,3-Tetramethyldisiloxane is an organosilicon compound characterized by its unique siloxane structure, which consists of silicon-oxygen bonds. This compound features two silicon atoms, each bonded to two methyl groups, resulting in a symmetrical molecular configuration. It is a colorless, odorless liquid at room temperature, exhibiting low viscosity and high thermal stability. The presence of the siloxane linkage imparts flexibility and resistance to moisture, making it useful in various applications, including as a silicone oil or intermediate in the synthesis of other silicone compounds. Additionally, it has low surface tension and good lubricating properties, which can enhance its utility in formulations for personal care products, coatings, and sealants. 1,1,3,3-Tetramethyldisiloxane is generally considered to have low toxicity, but safety precautions should still be observed when handling it, as with any chemical substance. Its unique properties make it valuable in both industrial and consumer applications, particularly in the fields of materials science and chemical manufacturing.

Formula: C₄H₁₄OSi₂

InChI: InChI=1/C4H14OSi2/c1-6-5-7(2,3)4/h6H2,1-4H3

InChI key: InChIKey=NVYQDQZEMGUESH-UHFFFAOYSA-N

SMILES: O([SiH](C)C)[SiH](C)C

Synonyms:

• 1,1,3,3-Tetramethyl-1,3-dihydrodisiloxane
• 1,1,3,3-Tetramethyl-1,3-disiloxane
• 1,1,3,3-Tetramethyldisiloxan
• 1,1,3,3-Tetramethyldisiloxane
• 1,1,3,3-Tetrametildisiloxano
• 1,3-Dihydrogen-1,1,3,3-tetramethyldisiloxane
• 1,3-Dihydrotetramethyldisiloxane
• Bis(dimethylsilyl) ether
• Bis(dimethylsilyl) oxide
• Dimethylsilyl ether
• Disiloxane, Tetramethyl-
• Dowsil 3-7010
• Ls 7040
• Nsc 155369
• T 2030
• T 2030 (siloxane)
• Tetramethyldisiloxane
• [(Dimethylsilyl)oxy]dimethylsilane
• sym-Tetramethyldisiloxane
• Disiloxane, 1,1,3,3-tetramethyl-
• 1,1,1,3-tetramethyldisiloxane
• TMDSO
• 1,1,3,3-tetramethyldisiloxane-1,3-diyl
• Tetramethyldiydrodisiloxane
• Hydrogen containing double head 1,1,3,3-Tetramethyldisiloxane
• dimethylsilylether
• Tetramethyldisiloxan
• (CH3)2HSiOSiH(CH3)2
• SILOXANE HSI2
• 1,1,3,3-tetramethyl-disiloxan
• 1,1,3,3-TETRAMETHYLDISILOXANE 97+%
• CT2030
• 1,1,3,3-TETRAMETHYLDISILOXANE,WACKER QUALITY

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

Formula: C₄H₁₄OSi₂

Purity: >97.0%(GC)

Color and Shape: Colorless to Almost colorless clear liquid

Molecular weight: 134.33

Ref: 3B-T1437

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

CAS: 3277-26-7

1,1,3,3-Tetramethyldisiloxane is used as a monomer in the production of silicone polymers or silicone resins. It is used as a precursor to prepare other organosilicon compounds. It is also utilized in non-aqueous polymer preparation as well as a laboratory reagent. This Thermo Scientific Chemicals b

Formula: C₄H₁₂OSi₂

Purity: 97%

Color and Shape: Clear colorless, Liquid

Molecular weight: 132.31

Ref: 02-B23697

1,1,3,3-Tetramethyldisiloxane, 99+% TMDSO

CAS: 3277-26-7

1,1,3,3-Tetramethyldisiloxane, 99+% TMDSO (99.9999%-Si) PURATREM

Formula: C₄H₁₄OSi₂

Purity: 99+% TMDSO

Color and Shape: colorless liq.

Molecular weight: 134.32

Ref: 08-14-7025

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

Formula: C₄H₁₂OSi₂

Purity: 98%

Color and Shape: Liquid

Molecular weight: 132.3085

Ref: IN-DA003D6I

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

Formula: C₄H₁₂OSi₂

Purity: ≥ 99.0%

Color and Shape: Clear, colourless liquid

Molecular weight: 132.31

Ref: 7W-GX4520

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

1,1,3,3-Tetramethyldisiloxane

Formula: C₄H₁₄OSi₂

Purity: ≥95%

Color and Shape: clear liquid

Molecular weight: 134.32g/mol

Ref: 54-OR70109

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

S16125 - 1,1,3,3-Tetramethyldisiloxane

Formula: C₄H₁₄OSi₂

Purity: 97%

Color and Shape: Liquid

Molecular weight: 134.325

Ref: 10-S16125

1,1,3,3-TETRAMETHYLDISILOXANE, 99%

CAS: 3277-26-7

Formula: C₄H₁₄OSi₂

Purity: 99%

Color and Shape: Liquid

Molecular weight: 134.33

Ref: 3H-SIT7546.1

1,1,3,3-TETRAMETHYLDISILOXANE, 98%

CAS: 3277-26-7

Alkenylsilane Cross-Coupling Agent
The cross-coupling reaction is a highly useful methodology for the formation of carbon-carbon bonds. It involves two reagents, with one typically being a suitable organometallic reagent - the nucleophile - and the other a suitable organic substrate, normally an unsaturated halide, tosylate or similar - the electrophile.
ALD Material
Atomic layer deposition (ALD) is a chemically self-limiting deposition technique that is based on the sequential use of a gaseous chemical process. A thin film (as fine as -0.1 Å per cycle) results from repeating the deposition sequence as many times as needed to reach a certain thickness. The major characteristic of the films is the resulting conformality and the controlled deposition manner. Precursor selection is key in ALD processes, namely finding molecules which will have enough reactivity to produce the desired films yet are stable enough to be handled and safely delivered to the reaction chamber.
Siloxane-Based Silane Reducing Agent
Organosilanes are hydrocarbon-like and possess the ability to serve as both ionic and free-radical reducing agents. These reagents and their reaction by-products are safer and more easily handled and disposed than many other reducing agents. The metallic nature of silicon and its low electronegativity relative to hydrogen lead to polarization of the Si-H bond yielding a hydridic hydrogen and a milder reducing agent compared to aluminum-, boron-, and other metal-based hydrides. A summary of some key silane reductions are presented in Table 1 of the Silicon-Based Reducing Agents brochure.
1,1,3,3-Tetramethyldisiloxane; 1,1-Dihydro-1,1,3,3-tetramethyldisiloxane; TMDO; TMDS
Viscosity, 20 °C: 0.56 cStΔHcomb: 4,383 kJ/molΔHvap: 30.3 kJ/molVapor pressure, 27 °C: 194.8 mmReduces aromatic aldehydes to benzyl halidesEmployed in reductive halogenation of aldehydes and epoxidesUsed to link ferrocenylsilane, polyolefin block copolymers into stable cylindrical formsEndcapper for polymerization of hydride terminated siliconesOrganic reducing agentEmployed in high-yield reduction of amides to amines in the presence of other reducible groupsReduces anisoles to arenesHydrosilylates terminal alkynes to form alkenylsilanes capable of cross-coupling with aryl and vinyl halidesExtensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007Extensive review of silicon based cross-coupling agents: Denmark, S. E. et al. "Organic Reactions, Volume 75" Denmark, S. E. ed., John Wiley and Sons, 233, 2011

Formula: C₄H₁₄OSi₂

Purity: 98%

Color and Shape: Liquid

Molecular weight: 134.22

Ref: 3H-SIT7546.0

1,1,3,3-Tetramethyldisiloxane

Controlled Product

CAS: 3277-26-7

Applications 1,1,3,3-Tetramethyldisiloxane is an organosilane reducing agent and can be used in several reduction reactions including reductive formation of sulfides and reductive etherification.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Pesti, J., et al.: Org. Process Res. Dev., pages ahead of print (2016);

Formula: C₄H₁₄OSi₂

Color and Shape: Neat

Molecular weight: 134.32

Ref: TR-T302830

1,1,3,3-Tetramethyldisiloxane

CAS: 3277-26-7

1,1,3,3-Tetramethyldisiloxane is a chemical compound that belongs to the group of functional groups. It can be isolated from hydrolysis of methyltrichlorosilane with sodium hydroxide and cellulose acetate. 1,1,3,3-Tetramethyldisiloxane has two isomers with different properties: 3-methylsilsesquioxane and 3-ethylsilsesquioxane. The former has an ethyl group at the end of its molecule and the latter has an ethyl group in the middle. The two isomers are not interchangeable because they have different physical properties. The 3-methylsilsesquioxane isomer reacts with aluminium to form a metathesis reaction product containing silanol groups on one side of the aluminum molecule and hydroxy groups on the other side. This product can be used as a catalyst for subsequent reactions in organic synthesis reactions involving

Formula: C₄H₁₄OSi₂

Purity: Min. 95%

Color and Shape: Clear Liquid

Molecular weight: 134.32 g/mol

Ref: 3D-FT61150

1,1,3,3-Tetramethyldisiloxane (TMDS) extrapure, 98%

CAS: 3277-26-7

Formula: C₄H₁₄OSi₂

Purity: min. 98%

Color and Shape: Clear, Colourless, Liquid

Molecular weight: 134.32

Ref: SR-88001