446840-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 446840-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,6,8,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 446840-31:
(8*4)+(7*4)+(6*6)+(5*8)+(4*4)+(3*0)+(2*3)+(1*1)=159
159 % 10 = 9
So 446840-31-9 is a valid CAS Registry Number.
446840-31-9Relevant articles and documents
A short route to new cyclobutene nucleoside analogues
Hubert, Cécile,Alexandre, Christian,Aubertin, Anne-Marie,Huet, Fran?ois
, p. 3775 - 3778 (2007/10/03)
Nucleoside analogues (+)-4a and (+)-4b were obtained in non-racemic form by a short and efficient way. The key step was a Mitsunobu reaction of alcohol (-)-8 with adenine or protected thymine. The title products were obtained after deprotection steps.