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319493-99-7

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319493-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 319493-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,9,4,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 319493-99:
(8*3)+(7*1)+(6*9)+(5*4)+(4*9)+(3*3)+(2*9)+(1*9)=177
177 % 10 = 7
So 319493-99-7 is a valid CAS Registry Number.

319493-99-7Relevant articles and documents

Stereocontrolled synthesis of multi-functionalized β-substituted α-amino acids: Nitrone cycloaddition approach

Tamura,Yoshida,Sugita,Mita,Uyama,Morita,Ishiguro,Kawasaki,Ishibashi,Sakamoto

, p. 1553 - 1556 (2007/10/03)

Syn- and anti-β-substituted α-amino acids 1 and 2 were synthesized by employing nitrone-cycloaddition. The stereochemistries required were controlled via a (Z)-nitrone-exo transition state for syn-amino acid 1 and via an (E)-nitrone-exo transition state for anti-amino acid 2, respectively.

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