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831235-51-9

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831235-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 831235-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,1,2,3 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 831235-51:
(8*8)+(7*3)+(6*1)+(5*2)+(4*3)+(3*5)+(2*5)+(1*1)=139
139 % 10 = 9
So 831235-51-9 is a valid CAS Registry Number.

831235-51-9Relevant articles and documents

Exploratory studies aimed at a synthesis of vinigrol. 4. Probe of possible means for direct connection of the side arms and of ring-contraction alternatives

Paquette, Leo A.,Liu, Zuosheng,Efremov, Ivan

, p. 514 - 518 (2007/10/03)

(Chemical Equation Presented) Attempts have been made to gain access to the vinigrol structural framework by way of three routes. These include reductive transannular cyclization, adaptation of the Ramberg-Baeckhand rearrangement, and deployment of the la

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