139405-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139405-05-3 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, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139405-05:
(8*1)+(7*3)+(6*9)+(5*4)+(4*0)+(3*5)+(2*0)+(1*5)=123
123 % 10 = 3
So 139405-05-3 is a valid CAS Registry Number.
139405-05-3Relevant academic research and scientific papers
Asymmetric aza Diels-Alder reactions of amino acid ester imines with Brassard's diene
Waldmann,Braun,Drager
, p. 1231 - 1246 (2007/10/02)
Imines 1 obtained from aromatic, aliphatic or functionalized aldehydes and valine tert-butyl ester undergo Lewis acid catalyzed hetero Diels-Alder reactions with Brassard's diene 2. The cycloadducts are formed in good to high yields and with diastereomer
