509077-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 509077-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,9,0,7 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 509077-55:
(8*5)+(7*0)+(6*9)+(5*0)+(4*7)+(3*7)+(2*5)+(1*5)=158
158 % 10 = 8
So 509077-55-8 is a valid CAS Registry Number.
509077-55-8Relevant academic research and scientific papers
Peptide synthesis with α-(difluoromethyl)-substituted α-amino acids
Michel, Thomas,Koksch, Beate,Osipov, Sergei N.,Golubev, Alexander S.,Sieler, Joachim,Burger, Klaus
, p. 1533 - 1559 (2007/10/03)
Methodology for the incorporation of α-(difluoromethyl)-substituted α-amino acids into N- and C-terminal positions of dipeptides as well as into position 2 of tri- and tetrapeptides is described.
