S P E C I F I C A T I O N S

DIMIDIUM BROMIDE

Synonyms:			3, 8-Diamino-5-methyl-6-phenylphenanthridinium bromide

CAS No.:			518-67-2

Chemical Formula:		C20H18BrN3

Formula Weight:		380.28

Appearance:			Maroon to dark purple to black powder

Identification:			Conforms to structure and standard. 

Assay:				95.0 – 106.0%
(Silver Nitrate Titration)					 

Loss on drying:			5%  maximum

pH:				6 - 7

Solubility:			Clear to slightly hazy dark orange to red-orange 
(1 g in 100 ml H2O)		to dark red solution.

Effective Date:  11/9/09