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141557-08-6

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141557-08-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141557-08-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,5,5 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 141557-08:
(8*1)+(7*4)+(6*1)+(5*5)+(4*5)+(3*7)+(2*0)+(1*8)=116
116 % 10 = 6
So 141557-08-6 is a valid CAS Registry Number.

141557-08-6Relevant articles and documents

Preliminary study of the total synthesis of Bao Gong Teng A analogs using 8-benzyl-2-oxo-8-azabicyclo[3.2.1]-Oct-3-ene-6-endo/exo- and 7- endo/exo-carbonitrile

Rézel, Stéphane,Estour, Fran?ois,Canitrot, Damien,Bejan Voinea, Elena V.,Chezal, Jean-M.,Lartigue, Claire,Blache, Yves,Gueiffier, Alain,Dauphin, Gérard,Teulade, Jean C.,Chavignon, Olivier

, p. 989 - 1002 (2007/10/03)

The use of four cycloadducts from the Katritzky reaction for subsequent preparation of Bao Gong Teng A analogs was studied. We show that the reduction of 2-oxo-8-azabicyclo[3.2.1]octanes (1-4) to alcohols allows the 2- exo/endo isomerism to be exploited.

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