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57497-09-3

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57497-09-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57497-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,9 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57497-09:
(7*5)+(6*7)+(5*4)+(4*9)+(3*7)+(2*0)+(1*9)=163
163 % 10 = 3
So 57497-09-3 is a valid CAS Registry Number.

57497-09-3Relevant articles and documents

Nickel-catalyzed ring-opening hydroacylation of methylenecyclopropanes: Synthesis of γ,δ-unsaturated ketones from aldehydes

Taniguchi, Hiroki,Ohmura, Toshimichi,Suginome, Michinori

, p. 11298 - 11299 (2011/02/28)

(Chemical Equation Presented) A nickel-catalyzed intermolecular hydroacylation of methylenecyclopropanes (MCPs) has been developed. The reaction proceeds with stereospecific cleavage of the proximal C-C bond of the cyclopropane ring to give γ,δ-unsaturate

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