129012-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129012-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,0,1 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129012-81:
(8*1)+(7*2)+(6*9)+(5*0)+(4*1)+(3*2)+(2*8)+(1*1)=103
103 % 10 = 3
So 129012-81-3 is a valid CAS Registry Number.
129012-81-3Relevant academic research and scientific papers
A bridgehead enone approach to huperzine A
Kraus,Hansen,Vines
, p. 2625 - 2634 (2007/10/02)
The preparation of a bicyclic amino ketone for the synthesis of huperzine has been achieved in only six steps. The key step is the introduction of the primary amine moiety via a bridgehead enone.
