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182126-72-3

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182126-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 182126-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,2,1,2 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 182126-72:
(8*1)+(7*8)+(6*2)+(5*1)+(4*2)+(3*6)+(2*7)+(1*2)=123
123 % 10 = 3
So 182126-72-3 is a valid CAS Registry Number.

182126-72-3Relevant articles and documents

Synthesis of purine and pyrimidine 3′-amino-3′-deoxy- and 3′-amino-2′,3′-dideoxyxylonucleosides

Garcia-Alles, Luis F.,Magdalena, Julia,Gotor, Vicente

, p. 6980 - 6986 (1996)

A general procedure to obtain the 3′-aminoxylonucleosides 13a,b and 17a,b is presented. The synthetic scheme is based on the 5′ directed intramolecular nucleophilic substitution at the 3′-activated position of the nucleoside. The approach of the incoming group to this position takes place regio- and stereoselectively from the most hindered face of the nucleoside. The methodology presented is applicable to ribonucleosides and 2′-deoxyribonucleosides, regardless of their nitrogenated base.

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