199794-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199794-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,9 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 199794-22:
(8*1)+(7*9)+(6*9)+(5*7)+(4*9)+(3*4)+(2*2)+(1*2)=214
214 % 10 = 4
So 199794-22-4 is a valid CAS Registry Number.
199794-22-4Relevant academic research and scientific papers
Stereocontrolled synthesis of α-2'-deoxyribonucleosides
Wang, Zhiwei,Rizzo, Carmelo J.
, p. 8177 - 8180 (2007/10/03)
A stereocontrolled synthesis of α-2'-deoxynucleosides has been achieved. Our synthetic strategy involves the use of a benzoyl group at the 2-position of arabinose as a directing group for Vorbruggen glycosylation and a deoxygenation precursor.
