1,3-Bis(bromomethyl)-5-ethyl-5-phenylbarbituric acid bis(hexamethylenetetramine) 3,5,7-Triaza-1-azoniatricyclo(3.3.1.1(sup 3,7))decane, 1,1'-((5-ethyldihydro-2,4,6-trioxo-5-phenyl-1,3(2H,4H)-pyrimidinediyl)bis(methylene))bis-, dibromide 50309-46-1