免费一区二区中文字幕,99热这里只有精品99,国精产品2024偷偷偷拍,国产亚洲欧美日韩在线三区

<small id="rhgg0"></small>
  • <menuitem id="rhgg0"></menuitem>
    • <td id="rhgg0"><thead id="rhgg0"><tbody id="rhgg0"></tbody></thead></td>
    <menu id="rhgg0"></menu>
      • 

    • <label id="rhgg0"><menuitem id="rhgg0"><code id="rhgg0"></code></menuitem></label>
    • 



      
        
		
      
		        
      中 | EN
      
		
      
		
		
      

      







      






      
         
		 
        
		 
      
		          
      
				             
      
							 
      PRODUCTS
      
							 
							 
      
				  
      
				  

		 
      
		
		 
		 
		 
      
		         
      PRODUCTS
      
				 
      http://aixhzmz.cn
      
				 
      
				 
				 
      
				           
						   	                                  
									  
      1,5-Diaminonaphthalene
      
									 
									   									   
									
       
									      
									 
									 
      Molecular formula: C10H10N2 
      
Molecular weight: 158.2
      


      Structural formula:
      


      


      CAS number: 2243-62-1
      


      Appearance: Off-white powder
      


      Purity: ≥99% HPLC
      


      1,8-DAN≤0.5%
      


      Insoluble matter: ≤0.1%
      


      Uses: Synthesis of 1,5-Naphthalene Diisocyanate