299209-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299209-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,2,0 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 299209-91:
(8*2)+(7*9)+(6*9)+(5*2)+(4*0)+(3*9)+(2*9)+(1*1)=189
189 % 10 = 9
So 299209-91-9 is a valid CAS Registry Number.
299209-91-9Relevant articles and documents
Alkaloid synthesis using chiral δ-amino β-ketoesters: A stereoselective synthesis of (-)-lasubine II
Davis, Franklin A.,Chao, Bin
, p. 2623 - 2625 (2000)
(equation presented) A highly stereoselective asymmetric synthesis of the quinolizidine alkaloid (-)-lasubine II from a δ-amino β-hydroxy ketone, a new polyfunctionalized chiral building block, is described.