173243-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173243-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,2,4 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 173243-20:
(8*1)+(7*7)+(6*3)+(5*2)+(4*4)+(3*3)+(2*2)+(1*0)=114
114 % 10 = 4
So 173243-20-4 is a valid CAS Registry Number.
173243-20-4Relevant articles and documents
New highly enantioselective synthesis of 6-alkylpiperidin-2-ones and 2-substituted piperidines
Freville,Celerier,Thuy,Lhommet
, p. 2651 - 2654 (2007/10/03)
A versatile and highly enantioselective approach to 2-substituted piperidines is described using phenylglycinol as chiral auxiliary.