Products
Pharmaceutical intermediate products
	Product name: Glutaric anhydride
	CAS RN: 108-55-4
	Molecular formula:  C5H6O3
	Molecular weight: 104.10
	Structural formula:
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	Properties: white acicular crystal. Soluble in ethyl ether, ethyl alcohol and tetrahydrofuran. 
	Uses: Functions as intermediate for synthetic chemical, pharmaceutical material and biological pharmacy.
	Quality index
| 
				 Quality index  | 
			
				 Index  | 
			
				 Test method  | 
		
| 
				 Appearance  | 
			
				 White acicular crystal  | 
			
				 Visual inspection  | 
		
| 
				 Content, %  | 
			
				 ≥98  | 
			
				 QB  | 
		
| 
				 Melting point, ℃  | 
			
				 55~56  | 
			
				 Automatic melting point detector  | 
		
| 
				 Ignition residue, ppm  | 
			
				 ≤500  | 
			
				 GB/T511  | 
		
| 
				 Water insoluble matter, ppm  | 
			
				 ≤50  | 
			
				 GB/T268  | 
		
| 
				 Moisture, %  | 
			
				 ≤0.1  | 
			
				 GB/T260  | 
		
| 
				 Clarity of solution, #  | 
			
				 ≤50  | 
			
				 Pt-Co method  | 
		
	Packing: fiber drum lined with plastic, net weight 25kg/drum.
	Storage: Keep in cool and dry place, to protect from fire, direct sunlight and damp.
