109605-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109605-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,6,0 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109605-64:
(8*1)+(7*0)+(6*9)+(5*6)+(4*0)+(3*5)+(2*6)+(1*4)=123
123 % 10 = 3
So 109605-64-3 is a valid CAS Registry Number.
109605-64-3Relevant articles and documents
Synthesis and Reactions of Endothiopeptides
Guziec, Frank S.,Wasmund, Loide Mayer
, p. 1301 - 1353 (2007/10/02)
Direct replacement of oxygen by sulphur in a peptide bond results in an endothiopeptide.This replacement can be accomplished by use of Lawesson's reagent 1; however, significant limitations are associated with this method.An improved procedure for the dir