成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

  • <span id="ue59v"><ins id="ue59v"></ins></span>
    <button id="ue59v"><nobr id="ue59v"><strong id="ue59v"></strong></nobr></button>
    • <code id="ue59v"><form id="ue59v"></form></code>
  • <i id="ue59v"><wbr id="ue59v"><div id="ue59v"></div></wbr></i>
    
    
    
    
	    
    Welcome to chemicalbook!
    
  	    
    
          Chinese
          English
          Japanese
          Germany
          Korea
          
        
          
    
          
    400-158-6606
    
      
    
 
    
    
    

    


    


    

	

    
            
            




    

    
    
    
    
    
        
    
            
            
    
                Try our best to find the right business for you.
                
            
    
        
    
        
    
            
            
    
                
                
    
                    Do not miss inquiry messages
                    Please log in to view all inquiry messages.
            
                
    
                
            
    
        
    

        
    
            
            
    
                
                
    
                    
    Welcome back!
    
                    
                
    
                
            
    
        
    

    
    


    

    


    
    
    











    
    
    
    
        
    
    
    
    
        
    
    
    
    
        
    
            
    
                16507-00-9
            
    
        
    
        
    
            4-NITRO-4-METHYLVALERONITRILE synthesis
        
    
        
    2synthesis methods
    
        
    
    

    
    
    
        
        
    
            
            
            
            
    
                -
            
    
            
    
                
                
    Yield:16507-00-9 85% 
    
                
                
    Reaction Conditions:
    
                
    with potassium carbonate in acetonitrile;Michael addition reaction;
    
                
                
    References:
    
                
    
                    Mistryukov, Electron A. [Mendeleev Communications,2007,vol. 17,# 4,p. 230 - 231]