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1,3,3,3-Tetramethyl-1-ethyldisiloxane is a chemical compound with the molecular formula C7H20OSi2. It is a colorless liquid at room temperature and is classified as a cyclic siloxane. 1,3,3,3-tetramethyl-1-ethyldisiloxane is composed of two silicon atoms connected by an oxygen atom, with four methyl groups attached to one silicon atom and an ethyl group attached to the other. It is commonly used as a coupling agent, a release agent, and a component in various silicone-based products. Due to its unique structure and properties, it is also employed in the synthesis of other organosilicon compounds and as a stabilizer in polymers. The compound is generally considered to be stable and non-toxic, but it should be handled with care due to its potential to cause irritation to the eyes, skin, and respiratory system.

7489-77-2

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7489-77-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7489-77-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,8 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7489-77:
(6*7)+(5*4)+(4*8)+(3*9)+(2*7)+(1*7)=142
142 % 10 = 2
So 7489-77-2 is a valid CAS Registry Number.

7489-77-2Upstream product

7489-77-2Downstream Products

7489-77-2Relevant academic research and scientific papers

Gas-phase reaction of free diethylsilylium ions with hexamethyldisiloxane

Kochina,Vrazhnov,Sinotova,Ignat'ev

, p. 708 - 710 (2005)

The gas-phase reaction of diethylsilylium ions with hexamethyldisiloxane was studied by the radiochemical procedure. As in reactions with other nucleophiles, the degree of rearrangement of the diethylsilylium ion in the reaction with hexamethyldisiloxane correlates with the condensation energy. In contrast to the reaction of Et2SiT+ with dibutyl ether, in the reaction with hexamethyldisiloxane the labeled substrate is formed, which is due to isomerization of the trimethylsilyl substituent giving rise to a labile hydrogen atom. 2005 Pleiades Publishing, Inc.

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