128121-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128121-02-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,2 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128121-02:
(8*1)+(7*2)+(6*8)+(5*1)+(4*2)+(3*1)+(2*0)+(1*2)=88
88 % 10 = 8
So 128121-02-8 is a valid CAS Registry Number.
128121-02-8Relevant articles and documents
Stereoselective synthesis of vinylogous peptides
Grison, Claude,Genève, Stéphane,Halbin, Etienne,Coutrot, Philippe
, p. 4903 - 4923 (2001)
A trans or cis ethenyl group has been inserted between the α-carbon and the carboxyl group of α-aminoacids by Horner stereoselective olefination of α-aminoaldehydes. Numerous pure cis and trans vinylogous α-aminoacids have been obtained thus and coupled w