432555-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 432555-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,2,5,5 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 432555-83:
(8*4)+(7*3)+(6*2)+(5*5)+(4*5)+(3*5)+(2*8)+(1*3)=144
144 % 10 = 4
So 432555-83-4 is a valid CAS Registry Number.
432555-83-4Relevant articles and documents
Asymmetric synthesis of 3-alkyl substituted prolines by alkylation of a chiral sulfone
Karoyan, Philippe,Chassaing, Gérard
, p. 1221 - 1223 (2007/10/03)
Preparation of 3-alkyl substituted prolines was achieved by alkylation of a chiral sulfone obtained from the amino-zinca-ene-enolate cyclization.