Direct Blue 71
      
      
      	
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Post Date:
      			Oct 29,2025
      		 
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Expiry Date:
      			Apr 27,2026
      		 
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Detailed Description:
      			
      				Cas No. :4399-55-7
			        
			        
			        
			        
			        
					  
      		 
      		  
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CAS Registry Number:
      			
      				
      					4399-55-7
      				
      			
      		 
      		
      		
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Synonyms:
      			;C.I. Direct Blue 71;C.I. 34140;Direct Blue  71;direct blue 71 (C.I. 34140);tetrasodium 3-[(E)-{4-[(E)-{4-[2-(6-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazino]-6-sulfonatonaphthalen-1-yl}diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1,5-disulfonate;tetrasodium 3-[(E)-{4-[(E)-{4-[(2E)-2-(6-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazinyl]-6-sulfonatonaphthalen-1-yl}diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1,5-disulfonate;Direct blue 71(C.I.34140);
      		 
      		
      		
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Molecular Formula:
      			C40H23N7Na4O13S4
      		 
      		
  				
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Molecular Weight:
      			1029.8688
      		 
      		
      		
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Molecular Structure:
    				
	    				
	    					
	    				
	     				
   					    
  				 
  				
  				  
				    
				    
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Safety Description:
				    S24/25:;
				   
				   
      	
       
      
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