127517-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127517-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,5,1 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 127517-83:
(8*1)+(7*2)+(6*7)+(5*5)+(4*1)+(3*7)+(2*8)+(1*3)=133
133 % 10 = 3
So 127517-83-3 is a valid CAS Registry Number.
127517-83-3Relevant articles and documents
Synthesis and Antiviral Activity of (S)-9-guanine
Kim, Choung Un,Luh, Bing Yu,Martin, John C.
, p. 1797 - 1800 (1990)
The synthesis of (S)-9-guanine (3), starting from (S)-4-(2-hydroxyethyl)-2,2-dimethyl-1,3-dioxolane (4), is described.Alkylation of trityl derivative 7 with (diethylphosphono)methyl triflate provided phosphonate 8, whi