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Trisiloxane, 3-cyclopropyl-1,1,1,3,5,5,5-heptamethyl-, also known as 3-cyclopropyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, is a cyclic siloxane compound with the chemical formula C10H24Si3O3. It consists of a cyclopropyl group attached to a trisiloxane chain, which is composed of three silicon atoms connected by oxygen atoms. Trisiloxane, 3-cyclopropyl-1,1,1,3,5,5,5-heptamethyl- is characterized by its unique structure, which provides specific properties such as thermal stability, low surface tension, and resistance to oxidation. These characteristics make it useful in various applications, including as a component in lubricants, surfactants, and as a precursor in the synthesis of other organosilicon compounds.

90256-73-8

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90256-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90256-73-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,5 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90256-73:
(7*9)+(6*0)+(5*2)+(4*5)+(3*6)+(2*7)+(1*3)=128
128 % 10 = 8
So 90256-73-8 is a valid CAS Registry Number.

90256-73-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name cyclopropyl-methyl-bis(trimethylsilyloxy)silane

1.2 Other means of identification

Product number -
Other names Trisiloxane,3-cyclopropyl-1,1,1,3,5,5,5-heptamethyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:90256-73-8 SDS

90256-73-8Downstream Products

90256-73-8Relevant academic research and scientific papers

Palladium-catalyzed cyclopropanation of alkenyl silanes by diazoalkanes: Evidence for a Pd0 mechanism

Berthon-Gelloz, Guillaume,Marchant, Melanie,Straub, Bernd F.,Marko, Istvan E.

body text, p. 2923 - 2931 (2009/12/01)

Alkenyl silanes are efficiently converted to the corresponding silyl cyclopropanes in the presence of a slight excess of diazomethane (2-4 equiv) and a low loading of Pd(OAc)2 (-3 mol%, which corresponds to a turnover frequency of 40000 h-1. Competition experiments revealed that vinyl silanes can be selectively cyclopropanated in the presence of an aliphatic terminal alkene and styrene. The complex [Pd 20(DVTMS)3] (38, DVTMS = divinyltetramethyldisiloxane) proved to be an exceptionally active catalyst for the cyclopropanation reaction, giving complete conversion at -35 °C in 1 min. Intermolecular and intramolecular competition experiments with DVTMS (36), both with Pd(OAc)2 and 38, provided strong evidence for a Pd 0(alkenyl silane)3 resting state. Detailed density functional calculations on the reaction pathways for the cyclopropanation of trimethylvinylsilane and DVTMS by diazomethane with Pd0 corroborated the experimental observations.

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