Chemical name:  2,3-Dihydroxynaphthalene
CAS NO.: 92-44-4
Structural formula:

Molecular Formula: C10H18O2
Molecular Weight: 160.17
Physicochemical properties:
Melting point: 162-166℃
Appearance: Earthy yellow to reddish crystalline powder
Application: Widely applicated in dyes, pharmaceuticals and high-grade electronic chemical intermediates.
Specifications
| 
			 Items  | 
			
			 Specifications  | 
		|
| 
			 Appearance  | 
			
			 Earthy yellow to reddish crystalline powder  | 
		|
| 
			 Purity  | 
			
			 ≥99.0%  | 
		|
| 
			 Loss on drying  | 
			
			 ≤0.1%  | 
		|
| 
			 Metal impurity/500g  | 
			
			 45~74?  | 
			
			 tested  | 
		
| 
			 ≥75?  | 
			
			 ≤3個(gè)  | 
		|
| 
			 ≥100?  | 
			
			 ≤1個(gè)  | 
		|
| 
			 ≥200?  | 
			
			 ≤0個(gè)  | 
		|
| 
			 ≥212?  | 
			
			 ≤0.1wt%  | 
		|
| 
			 Metal Ionic  | 
			
			 K、Ca  | 
			
			 ≤2ppm  | 
		
| 
			 Na、Co、Mn、Cr、Ni、Fe  | 
			
			 ≤1ppm(per)  | 
		|
| 
			 Cl  | 
			
			 ≤4ppm  | 
		|