85839-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85839-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,8,3 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 85839-70:
(7*8)+(6*5)+(5*8)+(4*3)+(3*9)+(2*7)+(1*0)=179
179 % 10 = 9
So 85839-70-9 is a valid CAS Registry Number.
85839-70-9Relevant academic research and scientific papers
Synthesis of Pyridopyridazines
Turck, Alain,Brument, Jean-Francois,Queguiner, Guy
, p. 101 - 103 (2007/10/02)
The synthesis of some 3-methylpyridopyridazines substituted at positions 6 and 6,7 is described.The first step of the preparation of an aza analog of ellipticine is studied.