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51666-47-8

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51666-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51666-47-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,6,6 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51666-47:
(7*5)+(6*1)+(5*6)+(4*6)+(3*6)+(2*4)+(1*7)=128
128 % 10 = 8
So 51666-47-8 is a valid CAS Registry Number.

51666-47-8Relevant academic research and scientific papers

Aldol Condensations Catalyzed by Basic Anion-Exchange Resins

Bonrath, Werner,Pressel, Yann,Schütz, Jan,Ferfecki, Erich,Topp, Klaus-Dieter

, p. 3584 - 3591 (2016)

The aldol condensations of various aldehydes with ketones in the presence of anionic (basic) ion-exchange resins have been investigated. Both batch and continuous modes were studied and compared for the reaction of citral (a mixture of geranial and neral) with acetone to give ψ-ionone. Different reaction conditions were investigated, and the performances of five different ion-exchange resins were compared. The most stable resins could be used for 10 cycles in batch mode or 1000 min in continuous mode without a significant loss in activity or selectivity.

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