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539823-55-7

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539823-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 539823-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,9,8,2 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 539823-55:
(8*5)+(7*3)+(6*9)+(5*8)+(4*2)+(3*3)+(2*5)+(1*5)=187
187 % 10 = 7
So 539823-55-7 is a valid CAS Registry Number.

539823-55-7Relevant articles and documents

Synthesis of heterocyclic γ-amino-α,β-unsaturated acid derivatives and peptide-heterocycle hybrids

Salgado, Antonio,Mann, Enrique,Sanchez-Sancho, Francisco,Herradon, Bernardo

, p. 57 - 71 (2007/10/03)

The syntheses of the γ-amino-α,β-unsaturated esters [(R)-4, (S)-5, and (±)-6] are reported. The methodology for the preparation of these triannular heterocycles involves two synthetic sequences from N-substituted amino alcohols: a 'one-pot' sequential Swe

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