139287-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139287-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,8 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139287-40:
(8*1)+(7*3)+(6*9)+(5*2)+(4*8)+(3*7)+(2*4)+(1*0)=154
154 % 10 = 4
So 139287-40-4 is a valid CAS Registry Number.
139287-40-4Relevant academic research and scientific papers
A new method for hydrolyzing 2-aryl-4,4-dimethyl-2-oxazolines to aryl carboxylic acids
Phillion,Pratt
, p. 13 - 22 (2007/10/02)
A method of hydrolyzing 2-aryl-4,4-dimethyl-2-oxazolines with trifluoromethanesulfonic anhydride is described which works well even for highly hindered systems where alternate methods fail.
