623942-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 623942-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,3,9,4 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 623942-64:
(8*6)+(7*2)+(6*3)+(5*9)+(4*4)+(3*2)+(2*6)+(1*4)=163
163 % 10 = 3
So 623942-64-3 is a valid CAS Registry Number.
623942-64-3Relevant articles and documents
A convergent approach to huperzine A and analogues
Kelly, Sean A.,Foricher, Yann,Mann, John,Bentley, Jonathan M.
, p. 2865 - 2876 (2007/10/03)
We describe a concise and convergent synthesis of (rac)-5-methoxy-6-azatricyclco[7.3.1.02,7]trideca-2(7),3,5,11-tetraen -13-ol, which has the basic ring system of huperzine A, a potent inhibitor of acetylcholinesterase. We also describe the syn
