1DD-LSD


1DD-LSD, also known as 1-dodecanoyl-LSD or as SYN-L-004, is an acylated derivative of lysergic acid diethylamide. 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.

Use and effects

Interactions

Chemistry

Analogues

s of 1DD-LSD include ALD-52, 1P-LSD, 1B-LSD, 1H-LSD, and 1V-LSD, among others.

Society and culture

Legal status

Canada

1DD-LSD is not a controlled substance in Canada as of 2025.

United States

1DD-LSD is not an explicitly controlled substance in the United States. However, it could be considered a controlled substance under the Federal Analogue Act if intended for human consumption.