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221616-80-4

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221616-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221616-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,1 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221616-80:
(8*2)+(7*2)+(6*1)+(5*6)+(4*1)+(3*6)+(2*8)+(1*0)=104
104 % 10 = 4
So 221616-80-4 is a valid CAS Registry Number.

221616-80-4Relevant articles and documents

Synthesis and anti-HIV and anti-HBV activities of 2'-fluoro-2',3'- unsaturated L-nucleosides

Lee, Kyeong,Choi, Yongseok,Gullen, Elizabeth,Schlueter-Wirtz, Susan,Schinazi, Raymond F.,Cheng, Yung-Chi,Chu, Chung K.

, p. 1320 - 1328 (2007/10/03)

The synthesis of L-nucleoside analogues containing 2'-vinylic fluoride was accomplished by direct condensation method, and their anti-HIV and anti- HBV activities were evaluated in vitro. The key intermediate 8, the sugar moiety of our target compounds, w

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