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192070-28-3

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192070-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 192070-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,2,0,7 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 192070-28:
(8*1)+(7*9)+(6*2)+(5*0)+(4*7)+(3*0)+(2*2)+(1*8)=123
123 % 10 = 3
So 192070-28-3 is a valid CAS Registry Number.

192070-28-3Relevant articles and documents

A second-generation synthesis of scalemic 3,5,5-trisubstituted pyrrolin-4-ones: Incorporation of functionalized amino acid side-chains

Smith III, Amos B.,Benowitz, Andrew B.,Favor, David A.,Sprengeler, Paul A.,Hirschmann, Ralph

, p. 3809 - 3812 (1997)

To access mimics of peptide β-strands (1), scalemic 3,5,5-trisubstituted pyrrolin-4-ones bearing the tyrosine, serine, and lysine side-chains have been generated via cyclization of metalated imino esters and deprotection. The functionalized imino esters were prepared by asymmetric alkylation of a common oxazolidinone precursor (2) derived from L-rhenylglycine.

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