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| Chemical and physical data | |
| Formula | C27H29N3O2S |
| Molar mass | 459.61 g·mol−1 |
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1T-AL-LAD is a psychedelic lysergamide derivative which has been sold as a designer drug, first reported in April 2024. It is believed to act as a prodrug for AL-LAD in a similar manner to how 1P-LSD acts as a prodrug for LSD. [1]
Amides of lysergic acid are collectively known as lysergamides or ergoamides, and include a number of compounds with potent agonist and/or antagonist activity at various serotonin and dopamine receptors. Lysergamides contain an embedded tryptamine structure, and as a result can produce similar, often psychedelic, effects to those of the true tryptamines.
ALD-52, also known as 1-acetyl-LSD, is a psychedelic drug that is structurally similar to lysergic acid diethylamide (LSD). ALD-52 has been reported to produce similar psychoactive effects as LSD, but its pharmacological effects on humans are poorly understood. Given its psychoactive properties, it has been reported to be consumed as a recreational drug, and the purported first confirmed detection of the substance on the illicit market occurred in April 2016.
AL-LAD, also known as 6-allyl-6-nor-LSD, is a psychedelic drug and an analog of lysergic acid diethylamide (LSD). It is described by Alexander Shulgin in the book TiHKAL. It is synthesized starting from nor-LSD as a precursor, using allyl bromide as a reactant.
ETH-LAD, 6-ethyl-6-nor-lysergic acid diethylamide is an analogue of LSD. Its human psychopharmacology was first described by Alexander Shulgin in the book TiHKAL. ETH-LAD is a psychedelic drug similar to LSD, and is slightly more potent than LSD itself, with an active dose reported at between 20 and 150 micrograms. ETH-LAD has subtly different effects to LSD, described as less demanding.
PRO-LAD is an analogue of LSD. It is described by Alexander Shulgin in the book TiHKAL. PRO-LAD is a psychedelic drug similar to LSD, and is around as potent as LSD itself with an active dose reported at between 100 and 200 micrograms.
N-Morpholinyllysergamide, also known as lysergic acid morpholide, is a derivative of ergine (lysergamide). It is less potent than lysergic acid diethylamide (LSD) but is reported to have some LSD-like effects at doses ranging from 75 to 700 micrograms and a shorter duration. LSM-775 may only produce weak or threshold psychedelic effects in humans.
Lysergic acid 2,4-dimethylazetidide (LA-SS-Az, LSZ) is an analog of LSD developed by the team led by David E. Nichols at Purdue University. It was developed as a rigid analog of LSD with the diethylamide group constrained into an azetidine ring in order to map the binding site at the 5-HT2A receptor. There are three possible stereoisomers around the azetidine ring, with the (S,S)-(+) isomer being the most active, slightly more potent than LSD itself in drug discrimination tests using trained rats.
1P-LSD is a psychedelic drug of the lysergamide class that is a derivative and functional analogue of LSD and a homologue of ALD-52. It originated in 2015 when it appeared a designer drug sold online. It was first synthesized as a legal-LSD alternative by Lizard Labs, a Netherlands based research chemical laboratory. It modifies the LSD molecule by adding a propionyl group to the nitrogen atom of LSD's indole group.
1P-ETH-LAD is an analog of LSD. 1P-ETH-LAD is a psychedelic drug similar to LSD. Research has shown formation of ETH-LAD from 1P-ETH-LAD incubated in human serum, suggesting that it functions as a prodrug. It is part of the lysergamide chemical class. Like ETH-LAD, this drug has been reported to be significantly more potent than LSD itself, and is reported to largely mimic ETH-LAD's psychedelic effects.
1cP-LSD is an acylated derivative of lysergic acid diethylamide (LSD), which has been sold as a designer drug. It was first synthesized as a legal-LSD alternative by Lizard Labs, a Netherlands based research chemical laboratory. In tests on mice it was found to be an active psychedelic with similar potency to 1P-LSD.
1B-LSD is an acylated derivative of lysergic acid diethylamide (LSD), which has been sold as a designer drug. In tests on mice it was found to be an active psychedelic, though with only around 1/7 the potency of LSD itself.
1V-LSD, sometimes nicknamed Valerie, is a psychotropic substance and a research chemical with psychedelic effects. 1V-LSD is an artificial derivative of natural lysergic acid, which occurs in ergot alkaloids, as well as being an analogue of LSD. 1V-LSD has been sold online until an amendment to the German NpSG was enforced in 2022 which controls 1P-LSD and now 1cP-LSD, 1V-LSD and several other lysergamides.
1D-LSD is a psychotropic substance and a research chemical that has potential psychedelic effects. It is believed to be a prodrug for LSD and has replaced 1V-LSD in Germany after 1V-LSD became covered by the German NpSG law in 2022. It is also available as tartrate and liquid.
1cP-AL-LAD is an analog of lysergic acid diethylamide (LSD) which has psychedelic effects and is thought to act as a prodrug for AL-LAD. It has been sold as a designer drug, first identified in France in June 2021.
1P-AL-LAD is a derivative of lysergic acid diethylamide (LSD) which has psychedelic effects and has been sold as a designer drug. It is believed to act as a prodrug for AL-LAD and produces a head-twitch response in animal studies.
1T-LSD is an acylated derivative of lysergic acid diethylamide (LSD), which has been sold as a designer drug. It was first identified in Japan in 2023 on blotter paper misrepresented as containing 1D-LSD, but which on analysis was determined to contain 1T-LSD instead. It was also detected in Germany around the same time.
1DD-LSD is an acylated derivative of lysergic acid diethylamide (LSD). In animal studies it produces a weak head-twitch response but with 27x lower potency than LSD itself. It is being researched as a potential slow-onset, long lasting prodrug for LSD which is expected to have reduced psychoactive effects.
1S-LSD is a psychotropic substance and research chemical belonging to the lysergamide class. It is the trimethylsilyl derivative of 1P-LSD and functions as a prodrug and functional analogue of LSD. 1S-LSD was developed in response to legal restrictions on similar compounds, such as 1D-LSD, which were banned in Germany under the NpSG law in June 2024.
1H-LSD is an acylated derivative of lysergic acid diethylamide (LSD), with a six carbon hexanoyl chain attached to the N1 position. It acts as a prodrug for LSD, and in animal studies produces drug-appropriate responding with a similar potency to short-chain homologues such as ALD-52 and 1P-LSD, in contrast to the 4 and 5 carbon homologues 1B-LSD and 1V-LSD which are several times weaker.
1P-BOL-148, is an analogue of LSD which acts as a prodrug for 2-bromo-LSD (BOL-148). It does not have hallucinogenic effects, but is claimed to be potentially useful for the treatment of cluster headaches, and as an antidepressant.