171897-02-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171897-02-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,8,9 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 171897-02:
(8*1)+(7*7)+(6*1)+(5*8)+(4*9)+(3*7)+(2*0)+(1*2)=162
162 % 10 = 2
So 171897-02-2 is a valid CAS Registry Number.
171897-02-2Relevant articles and documents
A stereodivergent synthesis of 3,4-disubstituted-2-azetidinones
Collis, Maree P.,Perlmutter, Patrick
, p. 2117 - 2134 (2007/10/03)
The synthesis of a new aminolactone 1, using a highly diastereoselective conjugate addition of benzylamine to the unsaturated lactone 6 derived from D-mannitol, is described. The enantiospecific transformation of this aminolactone into either cis- or tran