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155192-28-2

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155192-28-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155192-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,9 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155192-28:
(8*1)+(7*5)+(6*5)+(5*1)+(4*9)+(3*2)+(2*2)+(1*8)=132
132 % 10 = 2
So 155192-28-2 is a valid CAS Registry Number.

155192-28-2Relevant articles and documents

Synthetic approach to aphidicolan and stemodan basic skeletons using a "Tandem Principle" [2+2+2] and [4+2] cycloaddition reactions

Stammler, Robert,Halvorsen, Karine,Gotteland, Jean-Pierre,Malacria, Max

, p. 417 - 420 (2007/10/02)

A strategy based upon the "Tandem Principle" : coupling of the cobalt catalyzed [2+2+2] cycloaddition and an intramolecular [4+2] Diels-Alder reaction allowed the formation of the stemodan skeleton in 11 high yield steps starting from 4-ethoxycarbonyl cyclohexanone.

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