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189265-50-7

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189265-50-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189265-50-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,6 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189265-50:
(8*1)+(7*8)+(6*9)+(5*2)+(4*6)+(3*5)+(2*5)+(1*0)=177
177 % 10 = 7
So 189265-50-7 is a valid CAS Registry Number.

189265-50-7Relevant articles and documents

An entry to unusual classes of nucleoside analogues

Bar, Narayan C.,Patra, Ranjan,Achari, Basudeb,Mandal, Sukhendu B.

, p. 4727 - 4738 (2007/10/03)

Nucleosides 6a,m 6b and 16-18 having additional carbocycle or oxygen heterocycle fused to the ribose moiety have been synthesized by two routes. While 6a and 6b could be obtained from thymidine using 1,3-dipolar cycloaddition approach, Vorbruggen reaction on appropriate preformed carbocyclic derivatives furnished 16-18.

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