1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&

Base Information

• Chemical Name: 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&
• CAS No.: 2003-92-1
• Molecular Formula: C14H42 O5 Si6
• Molecular Weight: 458.997
• Hs Code.: 2934999090
• Mol file: 2003-92-1.mol

Synonyms:Tetrasiloxane,1,1,1,3,5,7,7,7-octamethyl-3,5-bis(trimethylsiloxy)- (6CI,7CI); 1,1,1,3,5,7,7,7-Octamethyl-3,3-bis(trimethylsiloxy)tetrasiloxane;1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane

Chemical Property of 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&

Chemical Property:

• Vapor Pressure: 0.000348mmHg at 25°C
• Refractive Index: 1.419
• Boiling Point: 121 °C10 mm Hg(lit.)
• Flash Point: >221 °F
• PSA: 46.15000
• Density: 0.885 g/mL at 25 °C(lit.)
• LogP: 5.54640

Purity/Quality:

98%min ^*data from raw suppliers

1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane 98% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&

There total 6 articles about 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& 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:

chloro-trimethyl-silane (75-77-4) + Methyltrichlorosilane (75-79-6) → methyltrimethicone (17928-28-8) + 1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]tetrasiloxane (2003-92-1)

Guidance literature:

With sodium chloride; In toluene; at 20 ℃; for 27h; Yield given. Yields of byproduct given;

Reference yield:

chloro-trimethyl-silane (75-77-4) + Methyltrichlorosilane (75-79-6) → methyltrimethicone (17928-28-8) + 1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]tetrasiloxane (2003-92-1) + 1,1,1,3,5,5,5-heptamethyltrisiloxane-3-ol (5272-21-9) + C11H34O5Si5 (86105-21-7)

Guidance literature:

With water; In toluene; at 20 ℃; for 27h; Yield given. Yields of byproduct given;

Reference yield:

C14H28O2SSi3 → 1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]tetrasiloxane (2003-92-1) + C9H24O3Si3 + phenylmethanethiol (100-53-8)

Guidance literature:

With acetic acid; In isopropyl alcohol; for 24h; Inert atmosphere;

DOI:10.1002/ejoc.202100349

upstream raw materials:

chloro-trimethyl-silane

Methyltrichlorosilane

1,1,1,3,5,5,5-heptamethyltrisiloxan

dibenzyltrisulfide

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