221122-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221122-71-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,2 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 221122-71:
(8*2)+(7*2)+(6*1)+(5*1)+(4*2)+(3*2)+(2*7)+(1*1)=70
70 % 10 = 0
So 221122-71-0 is a valid CAS Registry Number.
221122-71-0Relevant articles and documents
Synthesis of ornithine lactams via diastereoselective photocyclization of 2-amino-4-oxo-4-phenyl-butanoyl amines
Lindemann, Ute,Wulff-Molder, Dirk,Wessig, Pablo
, p. 4459 - 4473 (2007/10/03)
The diastereoselective synthesis of ornithine lactams 6-9 via photoinduced ε-hydrogen ion followed by cyclization of the corresponding 1,6-biradicals is described. A highly asymmetric 1,4-induction is observed.
