PIHKAL (Phenethylamines I Have Known And Loved) is a 1991 book by Alexander Shulgin and Ann Shulgin. It has two parts:
Explores their personal experiences with psychedelics, philosophical outlooks, and the "set and setting" of their experiments. Book II: The Chemical Catalog Technical reference/Compendium. A catalog of 179 phenethylamine compounds. Entries Include:
The book is split into two distinct parts, which is crucial for understanding why the PiHKAL PDF is so sought after. pihkal pdf
If you want, I can:
While the full 978-page printed book remains in circulation via Transform Press or retailers like Amazon, the technical second half is widely available online for free: Targeted article: PIHKAL — An Overview and Practical
The book you're referring to is likely "PIHKAL" (Phenethylamines I Have Known and Loved), a book by Alexander Shulgin, a well-known American chemist and psychopharmacologist.
Alexander Shulgin is credited with discovering and synthesizing over 230 psychoactive compounds, documenting their effects with meticulous detail. Therapeutic Potential: A catalog of 179 phenethylamine compounds
Scientific Reference: For those interested in medicinal chemistry, the Alexander Shulgin Lab Notebooks available via Scribd offer additional raw data from his extensive research. Where to Find the Full Text
PiHKAL’s true value lies in its rigorous honesty. In an era of government disinformation about drugs (e.g., "Reefer Madness"), Shulgin taught a generation how to be sacred, scientific explorers. His scale for rating experiences (+, ++, +++) has become the global standard for clinical psychedelic research.