http://bviaqyj6obc54vhn.onion/on.c9?product_id=5902&p=product
I can't imagine how or why this would be profitable. I'm really tempted to try the 100$ listing, but i have no way to test if it's oxy besides using it and seeing. Anyone have any input? Her reviews look padded as fuck, but this got me interested. Maybe it's a chemist extracting oxy from OP's?
I don't see why anyone would do this, other than if they're synthesizing it themselves, have some insider pharmaceutical source, or are cutting it.
For a basic assessment of purity you could take the melting point, which is a relatively simple procedure given some basic chemistry equipment. Oxycodone HCl has a melting point of 270-272°C according to the Merck Index. Impurities will generally lower the melting point, and increase the range. Use Google if you're interested in doing this.