57967-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57967-31-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,6 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57967-31:
(7*5)+(6*7)+(5*9)+(4*6)+(3*7)+(2*3)+(1*1)=174
174 % 10 = 4
So 57967-31-4 is a valid CAS Registry Number.
57967-31-4Relevant articles and documents
4-Aminoisoxazoles by Thorpe Cyclization
Gewald, Karl,Bellmann, Peter,Jaensch, Hans-Joachim
, p. 1623 - 1629 (2007/10/02)
Cyclization of α-(acylmethoxyimino)nitriles 1 in the presence of lithium hydroxide yields 5-acyl-4-aminoisoxazoles 2.Compounds 2f and 2a can be converted into the isoxazolopyrimidone 3 and the isoxazolopyridine 4.
