98758-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98758-67-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,5 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98758-67:
(7*9)+(6*8)+(5*7)+(4*5)+(3*8)+(2*6)+(1*7)=209
209 % 10 = 9
So 98758-67-9 is a valid CAS Registry Number.
98758-67-9Relevant 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.
