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91871-27-1

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91871-27-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91871-27-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,7 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91871-27:
(7*9)+(6*1)+(5*8)+(4*7)+(3*1)+(2*2)+(1*7)=151
151 % 10 = 1
So 91871-27-1 is a valid CAS Registry Number.

91871-27-1Relevant articles and documents

Synthesis and synthetic applications of 3-amino-Δ5-piperidein-2-ones: Synthesis of methionine-derived pseudopeptides

Estiarte, M. Angels,De Souza, Marcus V. N.,Del Rio, Xavier,Dodd, Robert H.,Rubiralta, Mario,Diez, Anna

, p. 10173 - 10186 (2007/10/03)

A method is described for the efficient preparation of 3-amino-Δ5- piperidein-2-ones 3. A synthetic application of enamides 3 has been achieved by methylthiolation on the C5 position to obtain the target methionine- derived pseudopeptides 2.

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