189696-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189696-91-1 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 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 189696-91:
(8*1)+(7*8)+(6*9)+(5*6)+(4*9)+(3*6)+(2*9)+(1*1)=221
221 % 10 = 1
So 189696-91-1 is a valid CAS Registry Number.
189696-91-1Relevant 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.
