139405-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139405-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,0 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139405-39:
(8*1)+(7*3)+(6*9)+(5*4)+(4*0)+(3*5)+(2*3)+(1*9)=133
133 % 10 = 3
So 139405-39-3 is a valid CAS Registry Number.
139405-39-3Relevant academic research and scientific papers
Asymmetric Diels-Alder Reactions with a Chiral Maleic Anhydride Analogue 5-(1-Menthyloxy)-2(5H)-furanone
Feringa, Ben L.,Jong, Johannes C. de
, p. 1125 - 1127 (2007/10/02)
5-(1-Menthyloxy)-2(5H)-furanone was used as a chiral dienophile in thermal asymmetric Diels-Alder reactions with several cyclic and acyclic dienes to give enantiomerically pure products.
