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698348-05-9

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698348-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 698348-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,8,3,4 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 698348-05:
(8*6)+(7*9)+(6*8)+(5*3)+(4*4)+(3*8)+(2*0)+(1*5)=219
219 % 10 = 9
So 698348-05-9 is a valid CAS Registry Number.

698348-05-9Relevant articles and documents

Synthesis of new 3-(1-ethylsulfanyl-2-perfluoroalkyl)-5-hydroxy-5-methyl (or 5-phenyl)-1,5-dihydro-pyrrol-2-ones Starting from γ-Keto thioesters and amines

Bouillon, Jean-Philippe,Tinant, Bernard,Nuzillard, Jean-Marc,Portella, Charles

, p. 711 - 721 (2004)

γ-Keto thioesters were easily transformed into α,β- unsaturated lactams using a two-step process (via furans) or by a one-pot reaction. This methodology is general and efficient leading to a varied substitution pattern. The structures of all new heterocycles were assigned using 2D NMR experiments, computer-assisted elucidation, and X-ray diffraction analyses.

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