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200957-26-2

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200957-26-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200957-26-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,9,5 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 200957-26:
(8*2)+(7*0)+(6*0)+(5*9)+(4*5)+(3*7)+(2*2)+(1*6)=112
112 % 10 = 2
So 200957-26-2 is a valid CAS Registry Number.

200957-26-2Relevant articles and documents

Conformationally locked nucleoside analogues based on the bridgehead substituted 7-oxonorbornane and their antiviral properties

Dejmek, Milan,Hrebabecky, Hubert,Dracinsky, Martin,Neyts, Johan,Leyssen, Pieter,Mertlikova-Kaiserova, Helena,Nencka, Radim

, p. 1549 - 1566 (2012/05/05)

We report on the preparation of novel 1'-homonucleoside derivatives locked in a West conformation by 1',4'-bridge consisting of annulated benzene or naphthalene ring. The crucial step of the synthesis was Diels-Alder reaction of an appropriate aryne with

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