amanitadine
Bluelighter
Which ever one is like LSD but but like half the duration.
The closest thing to such would be LSM....the few people I know who have tried it only had good things to say about it...and it's around 6 hours in duration...
I tried what was purported to be (and I have good reason to beliveve it was) ALD-52....I noticed no appreciable difference to LSD..
I like how Hamilton Morris' nickname of LSZ has stuck...Pickard had some fancy trade name for it...diazedine or some such...