223778-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223778-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,7 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223778-20:
(8*2)+(7*2)+(6*3)+(5*7)+(4*7)+(3*8)+(2*2)+(1*0)=139
139 % 10 = 9
So 223778-20-9 is a valid CAS Registry Number.
223778-20-9Relevant academic research and scientific papers
Flat peptides
Crisma, Marco,Formaggio, Fernando,Toniolo, Claudio,Yoshikawa, Taichi,Wakamiya, Tateaki
, p. 3272 - 3278 (2007/10/03)
We have synthesized by solution methods the first homopeptide series, pBrBz-(ΔAla)(n)-OMe (n = 1-6), based on a C(α,β)-didehydro-α-amino acid, to determine the preferred conformation of this residue, characterized by an sp2 α-carbon atom and th
