98720-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98720-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,2 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98720-17:
(7*9)+(6*8)+(5*7)+(4*2)+(3*0)+(2*1)+(1*7)=163
163 % 10 = 3
So 98720-17-3 is a valid CAS Registry Number.
98720-17-3Relevant academic research and scientific papers
Stereospecificity in Intramolecular Hetero-Diels-Alder Reactions of 2-Benzylidene-1,3-dicarbonyl Compounds
Tietze, Lutz F.,Bratz, Matthias,Machinek, Reinchard,Kiedrowski, Guenter v.
, p. 1638 - 1640 (2007/10/02)
The intramolecular hetero-Diels-Alder reaction of 2-benzylidene-1,3-dicarbonyl compounds proceeds via a concerted pathway; this has been shown by using 13C-labeled dienophiles.
