From: patrizio10024@gmail.com   
      
   This piece of information desn't seem to be an easy one.    
   Not present in Wikipedia and not on several other wikis in other languages.   
   https://en.wikipedia.org/wiki/Isoxazole   
   Didn't find in a web search except for a value of -67.1°C in this site:   
   https://www.chemicalbook.com/ChemicalProductProperty_EN_cb3485864.htm   
   but unfortunately it is given without a reference.   
   Anyone that could help?   
      
   Thanks   
   Angelo   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)