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717918-62-2

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717918-62-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 717918-62-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,9,1 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 717918-62:
(8*7)+(7*1)+(6*7)+(5*9)+(4*1)+(3*8)+(2*6)+(1*2)=192
192 % 10 = 2
So 717918-62-2 is a valid CAS Registry Number.

717918-62-2Relevant articles and documents

Convenient syntheses of aryl and perfluoroaryl trichlorogermanes and germatranes via an organotin route

Kultyshev, Roman G.,Prakash, G.K. Surya,Olah, George A.,Faller, Jack W.,Parr, Jonathan

, p. 3184 - 3188 (2004)

Aryl- and (perfluoroaryl)trichlorogermanes ArGeCl3(Ar = C 6H5, 2-FC6H4, 3,5-(CF 3)2C6H3, C6F5, 2,3,5,6-F4C5N) are easily obtained in 60-80% yields from the corresponding tributyl-stannanes and GeCl4 (1:1) at 150 °C in the absence of a solvent. Although the tin-to-germanium transmetalation of C6F5 group is sluggish, it is facilitated by addition of 1-2 mol % AIBN (2,2′-azobis(isobutyronitrile)).

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