Date	Severity	Status	Feedback
May 13 2015 1:31PM	Normal	Acknowledged	The structure shown does not match the molecular formula. Shouldn't the structure show two NH4+ molecules? The two ammonium ions had gotten overlaid with each other, making it look like there was only one. I have tidied the structure now, so it should appear correct.
Jul 2 2012 4:36AM	Normal	Acknowledged	(O-)2 NH4+ NH4+ better While I agree that the other depiction is more "chemically correct" both this depiction and the one you suggest describe the same material. In the future we may standardise depictions across the database to one format or the other.