Dodecamethylpentasiloxane

Base Information

• Chemical Name: Dodecamethylpentasiloxane
• CAS No.: 141-63-9
• Molecular Formula: C12H36O4Si5
• Molecular Weight: 384.843
• Hs Code.: 2934999090
• European Community (EC) Number: 205-492-2
• UNII: 0QDQ2VQ5YJ
• DSSTox Substance ID: DTXSID1044803
• Nikkaji Number: J65.603H
• Wikidata: Q27157634
• Mol file: 141-63-9.mol

Synonyms:DODECAMETHYLPENTASILOXANE;141-63-9;1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane;Pentasiloxane, dodecamethyl-;bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane;BRN 1792965;dodecamethyl pentasiloxane;EINECS 205-492-2;UNII-0QDQ2VQ5YJ;0QDQ2VQ5YJ;MFCD00039795;EC 205-492-2;4-04-00-04124 (Beilstein Handbook Reference);SCHEMBL42211;P-CARBOXYPHENYLGAMMAACID;Dodecamethylpentasiloxane, 97%;DTXSID1044803;CHEBI:84272;HSDB 8419;Pentasiloxane,1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-;DODECAMETHYLPENTASILOXANE [MI];AKOS015914116;CS-W011751;HY-W011035;SY103972;LS-102029;D4394;FT-0631822;D90282;Q27157634;1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane #;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

Chemical Property of Dodecamethylpentasiloxane

Chemical Property:

• Appearance/Colour: clear colorless liquid
• Vapor Pressure: <1 mm Hg ( 20 °C)
• Melting Point: -81 °C(lit.)
• Refractive Index: n20/D 1.392(lit.)
• Boiling Point: 284.387 °C at 760 mmHg
• Flash Point: 117.419 °C
• PSA: 36.92000
• Density: 0.893 g/cm³
• LogP: 4.82800
• Storage Temp.: Refrigerator
• Solubility.: Benzene (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
• Water Solubility.: 70.41ng/L at 23℃
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 8
• Exact Mass: 384.14599230
• Heavy Atom Count: 21
• Complexity: 313

Purity/Quality:

99.9% ^*data from raw suppliers

Dodecamethylpentasiloxane ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metalloid Compounds (Silicon)
• Canonical SMILES: C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
• Uses: A non-cyclic polydimethyl siloxane. Study shows that it can be transformed by a specific microflora and in the natural environment degraded by mechanisms similar to other organic compounds.

Technology Process of Dodecamethylpentasiloxane

There total 27 articles about Dodecamethylpentasiloxane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 98.0%

chloro-trimethyl-silane (75-77-4) + 1,3-diethoxy-1,1,3,3-tetramethyldisiloxane (18420-09-2) → dodecamethylpentasiloxane (141-63-9)

Guidance literature:

1,3-diethoxy-1,1,3,3-tetramethyldisiloxane; With sodium hydroxide; In toluene; at 15 - 25 ℃;

chloro-trimethyl-silane; In pentane; at -55 ℃;

DOI:10.1002/hc.20280

Reference yield: 65.0%

chloro-trimethyl-silane (75-77-4) + sodiumoxydimethylethoxysilane (121954-25-4) → Hexamethyldisiloxane (107-46-0) + decamethyltetrasiloxane (141-62-8) + dodecamethylpentasiloxane (141-63-9)

Guidance literature:

sodiumoxydimethylethoxysilane; With sodium hydroxide; In toluene; at 90 - 100 ℃; for 6.5h;

chloro-trimethyl-silane; In hexane;

DOI:10.1002/hc.20280

Reference yield: 60.0%

chloro-trimethyl-silane (75-77-4) + sodiumoxydimethylethoxysilane (121954-25-4) → decamethyltetrasiloxane (141-62-8) + dodecamethylpentasiloxane (141-63-9)

Guidance literature:

sodiumoxydimethylethoxysilane; With water; In 1,4-dioxane; toluene; at 25 - 60 ℃;

chloro-trimethyl-silane; In hexane;

DOI:10.1002/hc.20280

upstream raw materials:

4-Chloro-2-nitroaniline

chloro-trimethyl-silane

dimethylsilicon dichloride

trimethylsilyl iodide

Downstream raw materials:

4-Chloro-2-nitroaniline

Refernces

• 1、 Rebrov,Muzafarov. "Monosodiumoxyorganoalkoxysilanes: Synthesis and properties". . p. 514 - 541. Retrieved 2007/10/03.
• 2、 Voronkov,Romanova,Dubinskaya. "Reaction of dimethyldichlorosilane with hexamethyldisiloxane as a source of dimethylsilanone. A route to linear and cyclic polydimethylsiloxanes [4]". . p. 1156 - 1157. Retrieved 2007/10/03.