117087-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117087-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,0,8 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117087-99:
(8*1)+(7*1)+(6*7)+(5*0)+(4*8)+(3*7)+(2*9)+(1*9)=137
137 % 10 = 7
So 117087-99-7 is a valid CAS Registry Number.
117087-99-7Relevant 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