81452-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81452-57-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,5 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81452-57:
(7*8)+(6*1)+(5*4)+(4*5)+(3*2)+(2*5)+(1*7)=125
125 % 10 = 5
So 81452-57-5 is a valid CAS Registry Number.
81452-57-5Relevant academic research and scientific papers
SYNTHESIS OF QUINOLINE AND BENZOTHIOPHENE DERIVATIVES BY RING ANNELATION OF PYRIDINES AND THIOPHENES
Leusen, Albert M. van,Terpstra, Jan Willem
, p. 5097 - 5100 (2007/10/02)
Selected ortho-disubstituted pyridines and thiophenes react with Michael acceptors to give functionalized quinolines or benzothiophenes, respectively.
