137862-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137862-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,6 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 137862-16:
(8*1)+(7*3)+(6*7)+(5*8)+(4*6)+(3*2)+(2*1)+(1*6)=149
149 % 10 = 9
So 137862-16-9 is a valid CAS Registry Number.
137862-16-9Relevant articles and documents
Enol esters as intermediates for the facile conversion of amino acids into amides and dipeptides
Kabouche,Bruneau,Dixneuf
, p. 5359 - 5362 (2007/10/02)
N-Protected amino enol esters are easily transformed at room temperature into amino amides, and in the presence of potassium cyanide as catalyst, into tertiary amides and dipeptides.
