509953-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 509953-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,9,9,5 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 509953-12:
(8*5)+(7*0)+(6*9)+(5*9)+(4*5)+(3*3)+(2*1)+(1*2)=172
172 % 10 = 2
So 509953-12-2 is a valid CAS Registry Number.
509953-12-2Relevant academic research and scientific papers
A new and general synthesis of substituted 2-azafluorenones
Hundsdorf, Thomas,Blyumin, Evgeniy V.,Neunhoeffer, Hans
, p. 2532 - 2536 (2007/10/03)
A short high yield synthesis of polysubstituted 2-azafluorenones from 1,2,4-triazines using the metalation and intramolecular Diels-Alder reaction is described.
