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93159-06-9

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93159-06-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93159-06-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,1,5 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 93159-06:
(7*9)+(6*3)+(5*1)+(4*5)+(3*9)+(2*0)+(1*6)=139
139 % 10 = 9
So 93159-06-9 is a valid CAS Registry Number.

93159-06-9Relevant articles and documents

Novel domino products from the reaction of phenyl vinyl ketone and its derivatives with cyclic ketones

Surya Prakash Rao,Jeyalakshmi,Senthilkumar

, p. 2189 - 2199 (2002)

Reaction of phenyl vinyl ketone with cyclopentanone under thermal conditions resulted in novel domino products, 1,5,9-triketones along with the expected 1,5-diketones. The 1,5,9-triketones were formed via a Michael-Michael-rearrangement pathway. On the other hand, reaction under basic conditions furnished a spiro[4.5]decanone, formed by domino pathways involving Michael-Michael-aldol condensation reactions. Microwave mediated reductive amination-cyclization of the 1,5,9-triketone furnished the perhydrocyclopenta[ij]quinolizine derivative.

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