74781-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74781-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,8 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74781-98:
(7*7)+(6*4)+(5*7)+(4*8)+(3*1)+(2*9)+(1*8)=169
169 % 10 = 9
So 74781-98-9 is a valid CAS Registry Number.
74781-98-9Relevant academic research and scientific papers
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.
