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53847-40-8

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53847-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53847-40-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,8,4 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 53847-40:
(7*5)+(6*3)+(5*8)+(4*4)+(3*7)+(2*4)+(1*0)=138
138 % 10 = 8
So 53847-40-8 is a valid CAS Registry Number.

53847-40-8Relevant articles and documents

A Short Access to Symmetrically α,α-Disubstituted α-Amino Acids from Acyl Cyanohydrins

Boukattaya, Fatma,Caillé, Julien,Ammar, Houcine,Rouzier, Florian,Boeda, Fabien,Pearson-Long, Morwenna S. M.,Bertus, Philippe

, p. 906 - 916 (2016/03/12)

A straightforward synthesis of symmetrically α,α-disubstituted α-amino acids is presented. The key step of this process relies on the efficient double addition of Grignard reagents to acyl cyanohydrins to provide N-acyl amino alcohols selectively in good yields. The chemoselectivity of the reaction was modulated by the nature of the acyl moiety. Eleven amino acids were prepared, including the particularly simple divinylglycine, which is not easily accessible by using conventional methods.

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