128592-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128592-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,9 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128592-40:
(8*1)+(7*2)+(6*8)+(5*5)+(4*9)+(3*2)+(2*4)+(1*0)=145
145 % 10 = 5
So 128592-40-5 is a valid CAS Registry Number.
128592-40-5Relevant academic research and scientific papers
A new strategy for the enantioselective synthesis of aspidosperma alkaloids: II - Achievement of the pentacyclic system
Desmaele, Didier,D'Angelo, Jean
, p. 883 - 886 (2007/10/02)
Carbazolone 5 has been converted in eleven steps into alkaloid analog 1 (R = Me) (13% overall yield).