89105-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89105-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,0 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89105-91:
(7*8)+(6*9)+(5*1)+(4*0)+(3*5)+(2*9)+(1*1)=149
149 % 10 = 9
So 89105-91-9 is a valid CAS Registry Number.
89105-91-9Relevant academic research and scientific papers
Synthesis of Dihydromauritine A, a Reduced Cyclopeptide Alkaloid
Nutt, Ruth F.,Chen, Kau-Ming,Jouille, Madeleine M.
, p. 1013 - 1021 (2007/10/02)
The synthesis of the strained 14-membered cyclopeptide alkaloid derivative dihydromauritine A has been accomplished from L-proline via SN2 displacement and three amide bond forming steps.The nucleophilic displacement involved a β-bromopyrroline
