1D-AL-LAD
| Clinical data | |
|---|---|
| Other names | 1D-AL-LAD; 1-(1,2-Dimethylcyclobutane-1-carbonyl)-AL-LAD; 1-(1,2-Dimethylcyclobutanecarbonyl)-6-allyl-nor-LSD |
| Routes of administration | Oral[1] |
| Drug class | Serotonergic psychedelic; Hallucinogen |
| ATC code |
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| Pharmacokinetic data | |
| Onset of action | Peak: 2–2.5 hours[1] |
| Duration of action | 12 hours[1] |
| Chemical and physical data | |
| Formula | C29H36N3O2 |
| Molar mass | 458.626 g·mol−1 |
| 3D model (JSmol) | |
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1D-AL-LAD, also known as 1-(1,2-dimethylcyclobutane-1-carbonyl)-AL-LAD, is a psychedelic drug of the lysergamide family related to AL-LAD.[1][2] It is thought to be a prodrug of AL-LAD similarly to how 1D-LSD is a prodrug of LSD.[1] 1D-AL-LAD was encountered online as a novel designer drug in 2023 and 2024.[1] It is said to have a dose of 100 to 300 μg orally, a time to peak effects of 2 to 2.5 hours, and a duration of 12 hours.[1] The drug is said have "half the intensity" of LSD, with its effects including psychedelic visuals among others.[1] Although 1D-AL-LAD has reported to have been sold, some or all of the sold product appears to have actually been mislabeled 1T-AL-LAD.[2][3] 1D-AL-LAD is not an explicitly controlled substance in the United States[4] or in Canada.[5]
See also
References
- ^ a b c d e f g h "1D-AL-LAD". AIPSIN (in Russian). Retrieved 1 January 2026.
- ^ a b Okada Y, Segawa H, Yamamuro T, Kuwayama K, Tsujikawa K, Kanamori T, et al. (April 2025). "Synthesis and analytical characterization of 1-(2-thienoyl)-6-allyl-nor-d-lysergic acid diethylamide (1T-AL-LAD)". Drug Testing and Analysis. 17 (4): 494–501. doi:10.1002/dta.3747. PMID 38922764.
Since the end of 2023, a novel compound "1D-AL-LAD" appeared on X (formerly Twitter) and other websites. According to the Wikipedia article, "1D-LSD" is 1-(1,2-dimethylcyclobutanecarbonyl)-LSD (Figure 1c),22 a type of Group A LSD analog. However, there are no reports on this compound, except on Wikipedia. Meanwhile, our group identified 1T-LSD on the blotter paper labeled "1D-LSD". 11 This was the first report of 1T-LSD and false labeling of 1D-LSD. Another group in Japan reported similar results for 1D-LSD and 1T-LSD.12 Additionally, 1,2-dimethylcyclobutanecarboxylic acid (a compound required to obtain 1D-LSD) is only dealt with by a few contract synthesis companies and is expensive. This implies that all or at least a certain percentage of "1D-AL-LAD" could be 1-(2-thienoyl) AL-LAD23 (1T-AL-LAD).
- ^ Tanaka R, Kawamura M, Ito M, Kikura-Hanajiri R (July 2025). "Identification of two lysergic acid diethylamide analogs, 1-(3-(trimethylsilyl) propionyl) lysergic acid diethylamide (1S-LSD) and 1-(2-thienoyl)-6-allyl-nor-d-lysergic acid diethylamide (1T-AL-LAD), in paper sheet products distributed on the internet". Forensic Toxicology. 43 (2): 370–376. doi:10.1007/s11419-025-00718-3. PMID 40180768.
Although the synthesized 1T-AL-LAD compound has been characterized previously [20], this is the first study to identify 1T-AL-LAD in the sheet product that was obtained on the internet. Product B was described as containing 1D-AL-LAD, a compound with a 1,2-dimethylcyclobutane- 1-carbonyl group at the N 1 position of LSD. However, as in the case of 1T-LSD (sold as 1D-LSD), it was a compound with a thiophene-2-carbonyl group at the N 1 position of AL- LAD, 1T-AL-LAD. It is necessary to confirm the structure by analysis, since the compound labeled on the product may actually be different one.
- ^ Orange Book: List of Controlled Substances and Regulated Chemicals (January 2026) (PDF), United States: U.S. Department of Justice: Drug Enforcement Administration (DEA): Diversion Control Division, January 2026
- ^ "Controlled Drugs and Substances Act". Department of Justice Canada. 5 December 2025. Retrieved 20 January 2026.