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57491-61-9

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57491-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57491-61-9 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 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57491-61:
(7*5)+(6*7)+(5*4)+(4*9)+(3*1)+(2*6)+(1*1)=149
149 % 10 = 9
So 57491-61-9 is a valid CAS Registry Number.

57491-61-9Downstream Products

57491-61-9Relevant articles and documents

Acides gras marques en position ω par un nucleide radioactif emetteur γ

Riche, Francoise,Mathieu, Jean-Paul,Vincens, Maurice,Bardy, Andre,Comet, Michel,Vidal, Michel

, p. 49 - 55 (2007/10/02)

The synthesis of many saturated, acetylenic, olefinic (Z or E) fatty acids labeled with 123I or 131I at the ω-position has been achieved.The radioactive iodine atom is introduced by a I-, *I- exchange reaction; the influence on the yield of several parameters - presence of iodine carrier, fatty acid and water concentrations, solution acidity - has been studied.Experimental conditions which produce labeling yields higher than 95percent have been defined; these results have lead to a very easy labeling method used in several hospitals in the external study of myocardial metabolism of fatty acids.

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