97531-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97531-12-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,5,3 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97531-12:
(7*9)+(6*7)+(5*5)+(4*3)+(3*1)+(2*1)+(1*2)=149
149 % 10 = 9
So 97531-12-9 is a valid CAS Registry Number.
97531-12-9Relevant articles and documents
A NEW ROUTE TO HEXAHYDROPYRROLIZINES DERIVATIVES VIA NONSTABILIZED YLIDE GENERATED FROM N-METHYLPYRROLIDINE N-OXIDE
Chastanet, Jacqueline,Roussi, Georges
, p. 653 - 659 (2007/10/02)
N-Methylpyrrolidine N-oxide treated with lithium diisopropylamide in the presence of various olefins, leads to the corresponding hexahydropyrrolizines(6) via the ylide intermediate (5).