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111203-04-4

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111203-04-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111203-04-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,2,0 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 111203-04:
(8*1)+(7*1)+(6*1)+(5*2)+(4*0)+(3*3)+(2*0)+(1*4)=44
44 % 10 = 4
So 111203-04-4 is a valid CAS Registry Number.

111203-04-4Relevant articles and documents

From Lithiated Aminofluorosilanes to Mono- and Dimeric Iminosilanes

Stalke, Dietmar,Keweloh, Nayla,Klingebiel, Uwe,Noltemeyer, Matthias,Sheldrick, George M.

, p. 1237 - 1244 (2007/10/02)

Depending on the solvent and the bulkiness of the substituents, lithiated aminofluorosilanes are dimers, monomers, or LiF-adducts of iminosilanes.In the crystal structure of the dimeric lithium derivative of di-tert-butyl(tert-butylamino)fluorosilane, each lithium atom is coordinated by one fluorine and two nitrogen atoms.LiF-elimination leads - if sterically possible - to dimerisation.The limits of dimerisation are reached with the dimer diisopropyl(tri-tert-butylphenylimino)silane, for which the crystal structure analysis shows severe steric distortions.Fluorine-chlorine-exchange occurs in reactions of lithiated (tri-tert-butylphenylimino)fluorosilanes with Me3SiCl.Iminosilanes are obtained by thermal LiCl-elimination from the resulting salts. - Keywords: Aminofluorosilanes, Lithium Salts, Cyclisation, Iminosilanes, Crystal Structure

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