189697-08-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189697-08-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,6,9 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189697-08:
(8*1)+(7*8)+(6*9)+(5*6)+(4*9)+(3*7)+(2*0)+(1*8)=213
213 % 10 = 3
So 189697-08-3 is a valid CAS Registry Number.
189697-08-3Relevant academic research and scientific papers
Synthesis of 1-hydroxyindoles and indoles from ortho-nitroarylethanes
Wrobel, Zbigniew,Makosza, Mieczyslaw
, p. 5501 - 5514 (2007/10/03)
Cyclization of substituted ortho-nitroarylethanes to 1-hydroxyindoles and their further reduction to indoles is described. The mechanism of cyclization is discussed.
