It looks like something that people would sell on Alphabay or in the darknet markets in general lol.
According to Wikipedia the drug is illegal in a lot of countries and is a "Schedule 1 Controlled Substance" in the US. Looks like the OP is selling an illegal drug.
We're on the clearnet on an unrelated forum so there's no way we should be giving advice on how to sell that.
If you want OP, you could go on the
Dream Market subreddit or if you want to discuss illegal information you should try going on the darknet. Alpha Bay and Hansa Market are closed down so I suppose Dream Market is your main option.