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	Product:  Sodium 2-naphthol-7-sulfonate (F Acid)   
	CAS NO: 135-55-7 
	Molecular formula:   C10H7NaO4S 
	Structure formula:  
	 
	Properties: 
	Grey white powder. 
	Application:  
	Used as pharmaceutical intermediate. 
	Specification: 
	
		
			| 
					Items | 
					Quality |  
			| 
					Purity,% | 
					99 min. |  
			| 
					Moisture,% | 
					0.5 max. |  
	  |