945917-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 945917-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,5,9,1 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 945917-70:
(8*9)+(7*4)+(6*5)+(5*9)+(4*1)+(3*7)+(2*7)+(1*0)=214
214 % 10 = 4
So 945917-70-4 is a valid CAS Registry Number.
945917-70-4Relevant academic research and scientific papers
Short syntheses of (-)-(R)-Pyrrolam A and (1S)-1-hydroxyindolizidin-3-one
Schobert, Rainer,Wicklein, Andre
, p. 1499 - 1502 (2008/02/08)
(-)-(R)-Pyrrolam A was prepared in five steps, 95% ee and 25% yield, from (R)-benzyl prolinate. Closure of the pyrrolidine ring was effected by a domino addition-Wittig alkenation reaction with ylide Ph3PCCO, immobilized on a polystyrene resin.
