170442-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170442-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,4,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 170442-05:
(8*1)+(7*7)+(6*0)+(5*4)+(4*4)+(3*2)+(2*0)+(1*5)=104
104 % 10 = 4
So 170442-05-4 is a valid CAS Registry Number.
170442-05-4Relevant 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).