4DQSAR
Bluelighter
- Joined
- Feb 3, 2025
- Messages
- 5,490
Don't waste time for calculations. I assure you that a chlorine cation is lighter than the succinate tail.
Yes, but it's the relative masses of the WHOLE molecule, not just the addition salt that one needs to consider when adjusting the dose and succinic acid is a dicarboxylic acid so one mole of succinic acid salts two moles of 6-APB i.e. it was in the form of 2:1 succinate.
Which is why I concluded that the two would be similar in terms of freebase.
The important bit is that it was too impure to form a neat microcrystalline hydrochloride salt and positional isomers were the issue. That is why we got so many queries and why we had to find out what had changed. The synthesis obviously went from benzofuran and I'm sure you can work out how they synthesized the benzaldehyde intermediate thus why positional isomers ended up being a significant proportion of the product.
Why the 2:1 salt? I can't say for sure but knowing it was made in China, I can only guess that cost was one factor and likely keeping down the mass and volume another as although legal at the time, it still had to be smuggled into the EU so the smaller the better. That said, I never had anything to do with that side of things. I was just asked to work out what was wrong with the new batches. I don't know but suspect it was people who discovered the succinate was incredibly painful to snort, but I've never touched 6-APB of any of the derivatives BECAUSE I saw the instrumental analyses and knew it was badly made.
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