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193818-72-3

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193818-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193818-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,8,1 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 193818-72:
(8*1)+(7*9)+(6*3)+(5*8)+(4*1)+(3*8)+(2*7)+(1*2)=173
173 % 10 = 3
So 193818-72-3 is a valid CAS Registry Number.

193818-72-3Downstream Products

193818-72-3Relevant articles and documents

On the mechanism of the intramolecular samarium barbier reaction. Probes for formation of radical and organosamarium intermediates

Curran, Dennis P.,Gu, Xin,Zhang, Wei,Dowd, Paul

, p. 9023 - 9042 (2007/10/03)

A new type of mechanistic probe for the intramolecular samarium Barbier reaction has been designed, and two different probe substrates have been investigated in detail. Remarkably, no unambiguous evidence could be obtained in favor of any of the obvious intermediates (free alkyl or alkoxy radicals, ketyls, organosamarium species) that are postulated for this reaction. Several possibilities for modified mechanisms are suggested.

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