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176966-58-8

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176966-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176966-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,9,6 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 176966-58:
(8*1)+(7*7)+(6*6)+(5*9)+(4*6)+(3*6)+(2*5)+(1*8)=198
198 % 10 = 8
So 176966-58-8 is a valid CAS Registry Number.

176966-58-8Relevant articles and documents

Stereoselective synthesis of unnatural aminoacids cis-4-hydroxyproline and bulgecinine

Madau, Alessandra,Porzi, Gianni,Sandri, Sergio

, p. 825 - 830 (2007/10/03)

A new stereoselective synthesis of both (2R,4R)- and (2S,4S)-4-hydroxy-proline and (+)- and (-)-bulgecinine was performed starting from synthons 1 or 1', respectively. The synthetic route has been established via a novel assisted cleavage of a disubstituted amide in mild conditions and successive stereocontrolled iodocyclization.

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