1138339-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1138339-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,8,3,3 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1138339-17:
(9*1)+(8*1)+(7*3)+(6*8)+(5*3)+(4*3)+(3*9)+(2*1)+(1*7)=149
149 % 10 = 9
So 1138339-17-9 is a valid CAS Registry Number.
1138339-17-9Relevant articles and documents
Asymmetric synthesis of substituted tropinones using the intramolecular mannich cyclization reaction and acyclic N-sulfinyl β-amino ketone ketals
Davis, Franklin A.,Theddu, Naresh,Gaspari, Paul M.
, p. 1647 - 1650 (2009)
Sulfinimine-derived, enantiopure N-sulfinyl β-amino ketone ketals on hydrolysis give dehydropyrrolidine ketones that on treatment with. (Boc) 2O /DMAP afford substituted tropinones in good yield.