208719-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208719-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,7,1 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 208719-57:
(8*2)+(7*0)+(6*8)+(5*7)+(4*1)+(3*9)+(2*5)+(1*7)=147
147 % 10 = 7
So 208719-57-7 is a valid CAS Registry Number.
208719-57-7Relevant articles and documents
Terminal fluoroolefins. The synthesis of novel carboacyclic nucleosides
Miller, Shawn C.,McCarthy, James R.,Sabol, Jeffrey S.
, p. 1099 - 1113 (2007/10/03)
A facile preparation of ketone 7 from butanetriol acetonide 5 is reported, and its utility for the synthesis of novel carboacyclic nucleosides 3E, 3Z, 4E and 4Z by the selective manipulation of multiple functionalities is demonstrated.
