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4b,5,9b,10-Tetrahydro-4b,9b-dimesityl-2,4,7,9-tetramethyl-4b,9b-disilaindeno<2,1-a>inden is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

120905-07-9

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120905-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120905-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,9,0 and 5 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 120905-07:
(8*1)+(7*2)+(6*0)+(5*9)+(4*0)+(3*5)+(2*0)+(1*7)=89
89 % 10 = 9
So 120905-07-9 is a valid CAS Registry Number.

120905-07-9Downstream Products

120905-07-9Relevant academic research and scientific papers

Silicon Compounds with Strong Intramolecular Steric Interactions, 36. - A Bicyclic Disilane from the Reaction of 1,2-Dichlorotetramesityldisilane with Lithium tert-Butylamide

Weidenbruch, Manfred,Pan, Youlin,Peters, Karl,Schnering, Hans Georg von

, p. 1483 - 1486 (2007/10/02)

Treatment of 1,2-dichlorotetramesityldisilane (1) with lithium tert-butylamide gives the 4b,9b-disilaindenoindene derivative 3 whose NMR spectra in solution show a hindered rotation about the Si-C(mesityl) bonds even at high temperatures.The X-ray structure analysis of 3 reveals a strong folding of the two halves of the bicyclic molecule and a considerably short Si-Si bond length of 230.7 pm. - Keywords: Indenoindene derivative, 4b,9b-disila- / Rotation hindrance

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