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71898-98-1

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71898-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71898-98-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,9 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71898-98:
(7*7)+(6*1)+(5*8)+(4*9)+(3*8)+(2*9)+(1*8)=181
181 % 10 = 1
So 71898-98-1 is a valid CAS Registry Number.

71898-98-1Relevant articles and documents

Synthetic studies towards bridgehead diprenyl-substituted bicyclo[3.3.1]nonane-2,9-diones as models for polyprenylated acylphloroglucinol construction

Pouplin, Thomas,Tolon, Blanca,Nuhant, Philippe,Delpech, Bernard,Marazano, Christian

, p. 5117 - 5125 (2007)

The synthesis of bridgehead diprenylated bicyclo[3.3.1]-nonane-2,9-dione, based on a reductive rearrangement of an enol lactone, is presented. The same target could be reached by a one-step sequence involving Michael addition of 2,6-diprenylcyclohexanone

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