Methyl paraben, also mEthyl Paraben, one of the parabens, is a preservative with the chemical formula CH3(C6H4(OH)COO). It is the methyl ester of p-hydroxybenzoic acid.
Nature : a white crystalline powder or crystalline. 115-118 ° C melting point, boiling point, 297-298 ° C. Soluble in ethanol, ethyl ether and acetone, micro-soluble in water, chloroform, carbon disulfide and petroleum ether. Minor special aroma and taste, slightly bitter flavor,
Use : organic intermediates. For Preservatives, antimicrobial agent, used in food, cosmetics and pharmaceuticals. Also used for analysis of organic reagents. The goods on mold, yeast and bacteria have broad antibacterial effects, yeast and mold to the role of a strong, but especially for bacteria Gram-negative bacilli and the role of Lactobacillus poor. Food and medicine efficient preservation fungicides
	 
	
		
			
				 
			
					ITEM 
				 
				
					SPECIFICATION 
				 
			
				 
			
					Appearance
				 
				
					White crystalline powder
				 
			
				 
			
					Purity
				 
				
					>= 99.0%
				 
			
				 
			
					Melting point
				 
				
					125- 128
				 
			
				 
			
					Residue on ignition
				 
				
					=< 0.1%
				 
			
				 
			
					Acidity (mg/g)
				 
				
					4.0- 7.0
				 
			
				 
			
					Related substances
				 
				
					=< 0.5%
				 
			
				 
			
					Identification
				 
				
					Conform
				 
			
				 
			
					Clarity of solution
				 
				
					Clear and transparent
				 
			
				 
		
	
					Heavy metal (as Pb)
				 
				
					=< 10 ppm