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58-73-1 diphenhydramine | 
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| Chemical Name | diphenhydramine | 
| Synonyms | 2-benzhydryloxyethyldimethylamine;Diphenylhydramine | 
| Molecular Formula | C17H21NO | 
| Molecular Weight | 255.36 | 
| InChl | InChI=1/C17H21NO/c1-18(2)13-14-19-17(15-9-5-3-6-10-15)16-11-7-4-8-12-16/h3-12,17H,13-14H2,1-2H3 | 
| CAS Registry Number | 58-73-1 | 
| EINECS | 200-396-7 | 
| Molecular Structure | ![]()  | 
			    
| Melting Point | 167-172℃ | 
| MSDS | |