3972-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3972-52-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,7 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3972-52:
(6*3)+(5*9)+(4*7)+(3*2)+(2*5)+(1*2)=109
109 % 10 = 9
So 3972-52-9 is a valid CAS Registry Number.
3972-52-9Relevant academic research and scientific papers
STEREOCHEMISTRY IN THE CYCLIZATION OF o-AZIDOPHENYLALKENES TO INDOLES
Smith, P. A. S.,Rowe, C. D.r.,Hansen, D. W. Jr.
, p. 5169 - 5172 (2007/10/02)
Cis- and trans-o-azidostilbene, o-azido-β-methylstilbene, and (Z)-o-azido-β-deuteriostyrene give indoles on thermolysis by a mechanism involving attack by a nitrene directly on the β carbon atom, and not by insertion.
