182057-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 182057-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,2,0,5 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 182057-31:
(8*1)+(7*8)+(6*2)+(5*0)+(4*5)+(3*7)+(2*3)+(1*1)=124
124 % 10 = 4
So 182057-31-4 is a valid CAS Registry Number.
182057-31-4Relevant articles and documents
Radical Mediated Synthesis of 6-Arylphenanthridines via Benzotriazole Ring-opening
Katritzky, Alan R.,Yang, Baozhen
, p. 607 - 610 (2007/10/03)
Lithiation of diarylbenzotriazol-1-ylmethanes followed by addition of copper(I) iodide gave 6-arylphennathridine derivatives in moderate yields.When the two aryl groups were the same or contained very different electron densities, only one product was obt
