183117-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183117-22-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,1,1 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 183117-22:
(8*1)+(7*8)+(6*3)+(5*1)+(4*1)+(3*7)+(2*2)+(1*2)=118
118 % 10 = 8
So 183117-22-8 is a valid CAS Registry Number.
183117-22-8Relevant articles and documents
An Improved Synthesis of 2'-O-(13C) Methylguanosine
Sochacka, Elzbieta,Starosta, Agnieszka,Malkiewicz, Andrzej
, p. S59 - S62 (1996)
Using methyl iodide as a source of 13C label, an efficient and regioselective synthesis of 2'-O-(13C)methylguanosine has been elaborated.The synthesis of the fully protected 2'-O-(13C)methylguanosine-3'-O-phosphoramidite (9), the building unit for the oli
