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1399859-44-9

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1399859-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1399859-44-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,9,8,5 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1399859-44:
(9*1)+(8*3)+(7*9)+(6*9)+(5*8)+(4*5)+(3*9)+(2*4)+(1*4)=249
249 % 10 = 9
So 1399859-44-9 is a valid CAS Registry Number.

1399859-44-9Relevant articles and documents

Stereoselective synthesis of enantiopure N-protected-3-arylpiperazines from keto-esters

Jida, Mouhamad,Laconde, Guillaume,Soueidan, Olivier-Mohamad,Lebegue, Nicolas,Revelant, Germain,Pelinski, Lydie,Agbossou-Niedercorn, Francine,Deprez, Benoit,Deprez-Poulain, Rebecca

, p. 5215 - 5218 (2012/11/07)

An efficient method for a stereoselective synthesis of optically pure N-Boc-3-arylpiperazines has been developed. After optimization of the protecting group strategy and experimental conditions, compounds were obtained via a highly stereoselective synthesis in up to 45% overall yield. This is a practical route to optically pure piperazines for medicinal chemistry.

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