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83537-81-9

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83537-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83537-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,3 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83537-81:
(7*8)+(6*3)+(5*5)+(4*3)+(3*7)+(2*8)+(1*1)=149
149 % 10 = 9
So 83537-81-9 is a valid CAS Registry Number.

83537-81-9Relevant articles and documents

Efficient enantioselective synthesis of orthogonally protected (R)-α-alkylserines compatible with the solid phase peptide synthesis

Vassiliou, Stamatia,Yiotakis, Athanasios,Magriotis, Plato A.

, p. 7339 - 7341 (2007/10/03)

The Sch?llkopf methodology for the asymmetric synthesis of α-amino acids, which was previously not applicable to the construction of quaternary α-amino acids, has been rendered not only suitable but also practical for this purpose and applied to a highly efficient enantioselective synthesis of orthogonally protected (R)-α-alkylserines suitable for the solid phase synthesis.

Asymmetric Syntheses via Heterocyclic Intermediates, XI Enantioselective Synthesis of (R)-(-)-α-Methylserine

Groth, Ulrich,Chiang, Yao-chung,Schoellkopf, Ulrich

, p. 1756 - 1757 (2007/10/02)

Die Titelverbindung 7 wurde in enantiomerenreiner Form durch asymmetrische Synthese dargestellt unter Verwendung des Bislyctimethers 1 von cyclo-(L-Val-DL-Ala) als Ausgangsverbindung.

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