17239-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17239-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,3 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17239-56:
(7*1)+(6*7)+(5*2)+(4*3)+(3*9)+(2*5)+(1*6)=114
114 % 10 = 4
So 17239-56-4 is a valid CAS Registry Number.
17239-56-4Relevant academic research and scientific papers
Effects of strong π-electron accepting substituents on structure preference for thiocarbonyl ylide or thiirane
Oka, Kitaro,Dobashi, Akira,Hara, Shoji
, p. 3579 - 3582 (2007/10/02)
Equilibrium between thiocarbonyl ylide and thiirane depends upon the π-electron accepting nature of the substituents. Four carbonyl and ester groups move the equilibrium far to the thiocarbonyl ylide side.
