Basically any namebrand you find will state the contents of the Bottle and the chemical make up. It is a perfectly legal substance, and as others said is simply use for meat curing. Outside of this form I really haven't ever heard of this being used for suicide, so I don't think it's that popular thing as of yet. I assume if there is a sudden spike in suicides using this substance and there is a Knouff of them regulation will be put into place to some degree, but it was really cold NovembeOutside of this form I really haven't ever heard of this being used for suicide, so I don't think it's that popular thing as of yet. I assume if there is a sudden spike in suicides using this substance and there is enough of them regulation will be put into place to some degree, but for something like that to happen it will take a lot of suicide cases and people on this forum are from all parts of the world. Though a lot of people here are using that the suicide cases are so spread out worldwide and timewise that it's unlikely to be labeled a trend.