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1257863-91-4

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1257863-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257863-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,8,6 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1257863-91:
(9*1)+(8*2)+(7*5)+(6*7)+(5*8)+(4*6)+(3*3)+(2*9)+(1*1)=194
194 % 10 = 4
So 1257863-91-4 is a valid CAS Registry Number.

1257863-91-4Relevant articles and documents

Syntheses of (-)-pelletierine and (-)-homopipecolic acid

Chiou, Wen-Hua,Chen, Guei-Tang,Kao, Chien-Lun,Gao, Yu-Kai

, p. 2518 - 2520 (2012/04/23)

Enantiomeric syntheses of (-)-homopipecolic acid and (-)-pelletierine have been achieved by chiral resolution of tropanol followed by Baeyer-Villiger oxidation. The methodology provides a practical route for the synthesis of optically pure piperidines. The Royal Society of Chemistry 2012.

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