201667-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201667-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,6,6 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 201667-44:
(8*2)+(7*0)+(6*1)+(5*6)+(4*6)+(3*7)+(2*4)+(1*4)=109
109 % 10 = 9
So 201667-44-9 is a valid CAS Registry Number.
201667-44-9Relevant academic research and scientific papers
2'-O-methylthiomethyl modifications in hammerhead ribozymes
Karpeisky, Alexander,Gonzalez, Carolyn,Burgin, Alex B.,Usman, Nassim,Beigelman, Leonid
, p. 955 - 958 (2007/10/03)
The synthesis of all four phosphoramidites of 2'-O-methylthiomethyl ribonucleosides and their incorporation into hammerhead ribozymes and influence on nuclease stability and catalytic activity is described.
