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53432-81-8

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53432-81-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53432-81-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,4,3 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53432-81:
(7*5)+(6*3)+(5*4)+(4*3)+(3*2)+(2*8)+(1*1)=108
108 % 10 = 8
So 53432-81-8 is a valid CAS Registry Number.

53432-81-8Relevant articles and documents

Samarium(II) iodide-promoted intermolecular and intramolecular ketone- nitrile reductive coupling reactions

Zhou, Longhu,Zhang, Yongmin,Shi, Daqing

, p. 91 - 98 (2007/10/03)

Samarium (II) iodide, a strong one-electron transfer reducing reagent, has been successfully utilized for the intermolecular and intramolecular reductive coupling reactions of ketones with nitriles, α-Hydroxy ketones, monocyclic, fused bicyclic α-hydroxy ketones and monocyclic α-amino alcohols composed of a number of substitution patterns have been prepared in good yields at room temperature or reflux under neutral conditions. The procedure can avoid overreduction of the resulting of α-hydroxy ketones or α-amino alcohols. The crystal structures of monocyclic α-amino alcohols are reported.

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