108197-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108197-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,1,9 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 108197-77:
(8*1)+(7*0)+(6*8)+(5*1)+(4*9)+(3*7)+(2*7)+(1*7)=139
139 % 10 = 9
So 108197-77-9 is a valid CAS Registry Number.
108197-77-9Relevant academic research and scientific papers
Synthesis of Pyridobenzofurans
Sarbagya, D. P.,Rangachari, K.,Mazumdar, A. K. D.,Banerji, K. D.
, p. 891 - 893 (2007/10/02)
Some diarylpyridobenzofurans have been conveniently synthesised in 50-65percent yield by the condensation of 2-arylidene-6-methoxycoumaran-3-ones (III) with phenacylpyridinium halides in the presence of ammonium acetate.In a similar manner some 5-h
