287920-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287920-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,9,2 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 287920-04:
(8*2)+(7*8)+(6*7)+(5*9)+(4*2)+(3*0)+(2*0)+(1*4)=171
171 % 10 = 1
So 287920-04-1 is a valid CAS Registry Number.
287920-04-1Relevant articles and documents
New synthesis of arcyriaflavin-A via silyl enol ether-mediated and Fischer indolisations
Alonso, Dulce,Caballero, Esther,Medarde, Manuel,Tomé, Fernando
, p. 4839 - 4841 (2005)
A new synthesis of the natural product arcyriaflavin-A is described. It was brought about through Diels-Alder cycloaddition and two indolisations based on silyl enol ether nucleophilic attack and Fischer processes.
