Cas 70524-91-3,7-keto-13β-methyl-5,6,7,8,9,10,13β,14β-octahydrophenanthrene

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Check Digit Verification of cas no

The CAS Registry Mumber 70524-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,5,2 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 70524-91:
(7*7)+(6*0)+(5*5)+(4*2)+(3*4)+(2*9)+(1*1)=113
113 % 10 = 3
So 70524-91-3 is a valid CAS Registry Number.

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70524-91-3Relevant academic research and scientific papers

Lewis Acid Promoted Decomposition of Unsaturated α-Diazo Ketones. 3. Stereochemical Consequences of Polyolefinic Cyclizations Initiated by the α-Diazo Ketone Functionality

Smith, Amos B.,Dieter, R. Karl

, p. 2017 - 2022 (2007/10/02)

This report presents the stereochemical consequences of polyolefinic cyclizations initiated by Lewis acid decomposition of α-diazo ketones.Three diazo ketones (1, 2, and 5) were examined; each was found to undergo a nonstereospecific process leading eithe

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