TiHKAL

Not to be confused with Tikal.

TiHKAL: The Continuation is a 1997 book written by Alexander Shulgin and Ann Shulgin about a family of psychoactive drugs known as tryptamines.^[1][2] A sequel to PiHKAL: A Chemical Love Story, TiHKAL is an acronym that stands for "Tryptamines I Have Known and Loved".^[1][2]

TiHKAL: The Continuation

Cover of TiHKAL, 1st ed.
Author	Alexander and Ann Shulgin
Subject	Pharmacology, Autobiography, Psychedelic drugs
Publisher	Transform Press
Publication date	1997
Publication place	United States
Media type	Paperback
Pages	xxviii, 804 p.
ISBN	0-9630096-9-9
OCLC	38503252
Preceded by	PIHKAL

Content

TIHKAL, much like its predecessor PIHKAL, is divided into two parts. The first part, for which all rights are reserved, begins with a fictionalized autobiography, picking up where the similar section of PIHKAL left off; it then continues with a collection of essays on topics ranging from psychotherapy and the Jungian mind to the prevalence of DMT in nature, ayahuasca and the War on Drugs. The second part of TIHKAL, which may be conditionally distributed for non-commercial reproduction (see § External links, below), is a detailed synthesis manual for 55 psychedelic compounds (many discovered by Alexander Shulgin himself), including their chemical structures, dosage recommendations, and qualitative comments. Shulgin has made the second part freely available on Erowid while the first part is available only in the printed text.

As with PIHKAL, the Shulgins were motivated to release the synthesis information as a way to protect the public's access to information about psychedelic compounds, a goal Alexander Shulgin has noted many times.^[3] Following a raid of his laboratory in 1994 by the United States DEA,^[4] Richard Meyer, spokesman for DEA's San Francisco Field Division, stated that "It is our opinion that those books [referring to the previous work, PIHKAL] are pretty much cookbooks on how to make illegal drugs. Agents tell me that in clandestine labs that they have raided, they have found copies of those books."

Tryptamines listed

#	Substance	Chemical name
1	AL-LAD	6-Allyl-N,N-diethyl-NL
2	DBT	N,N-Dibutyl-T
3	DET	N,N-Diethyl-T
4	DiPT	N,N-Diisopropyl-T
5	α,O-DMS	5-Methoxy-α-methyl-T
6	DMT	N,N-Dimethyl-T
7	2,α-DMT	2,α-Dimethyl-T
8	α,N-DMT	α,N-Dimethyl-T
9	DPT	N,N-Dipropyl-T
10	EiPT	N-Ethyl-N-isopropyl-T
11	AET	α-Ethyl-T
12	ETH-LAD	6,N,N-Triethyl-NL
13	Harmaline	3,4-Dihydro-7-methoxy-1-methyl-C
14	Harmine	7-Methyoxy-1-methyl-C
15	4-HO-DBT	N,N-Dibutyl-4-hydroxy-T
16	4-HO-DET	N,N-Diethyl-4-hydroxy-T
17	4-HO-DiPT	N,N-Diisopropyl-4-hydroxy-T
18	4-HO-DMT	N,N-Dimethyl-4-hydroxy-T
19	5-HO-DMT	N,N-Dimethyl-5-hydroxy-T
20	4-HO-DPT	N,N-Dipropyl-4-hydroxy-T
21	4-HO-MET	N-Ethyl-4-hydroxy-N-methyl-T
22	4-HO-MiPT	4-Hydroxy-N-isopropyl-N-methyl-T
23	4-HO-MPT	4-Hydroxy-N-methyl-N-propyl-T
24	4-HO-pyr-T	4-Hydroxy-N,N-tetramethylene-T
25	Ibogaine	A complexly substituted-T
26	LSD	N,N-Diethyl-L
27	MBT	N-Butyl-N-methyl-T
28	4,5-MDO-DiPT	N,N-Diisopropyl-4,5-methylenedioxy-T
29	5,6-MDO-DiPT	N,N-Diisopropyl-5,6-methylenedioxy-T
30	4,5-MDO-DMT	N,N-Dimethyl-4,5-methylenedioxy-T
31	5,6-MDO-DMT	N,N-Dimethyl-5,6-methylenedioxy-T
32	5,6-MDO-MiPT	N-Isopropyl-N-methyl-5,6-methylenedioxy-T
33	2-Me-DET	N,N-Diethyl-2-methyl-T
34	2-Me-DMT	2,N,N-Trimethyl-T
35	Melatonin	N-Acetyl-5-methoxy-T
36	5-MeO-DET	N,N-Diethyl-5-methoxy-T
37	5-MeO-DiPT	N,N-Diisopropyl-5-methoxy-T
38	5-MeO-DMT	5-Methoxy-N,N-dimethyl-T
39	4-MeO-MiPT	N-Isopropyl-4-methoxy-N-methyl-T
40	5-MeO-MiPT	N-Isopropyl-5-methoxy-N-methyl-T
41	5,6-MeO-MiPT	5,6-Dimethoxy-N-isopropyl-N-methyl-T
42	5-MeO-NMT	5-Methoxy-N-methyl-T
43	5-MeO-pyr-T	5-Methoxy-N,N-tetramethylene-T
44	6-MeO-THH	6-Methoxy-1-methyl-1,2,3,4-tetrahydro-C
45	5-MeO-TMT	5-Methoxy-2,N,N-trimethyl-T
46	5-MeS-DMT	N,N-Dimethyl-5-methylthio-T
47	MiPT	N-Isopropyl-N-methyl-T
48	α-MT	α-Methyl-T
49	NET	N-Ethyl-T
50	NMT	N-Methyl-T
51	PRO-LAD	6-Propyl-NL
52	pyr-T	N,N-Tetramethylene-T
53	T	Tryptamine
54	Tetrahydroharmine	7-Methoxy-1-methyl-1,2,3,4-tetrahydro-C
55	α,N,O-TMS	α,N-Dimethyl-5-methoxy-T

See also

• List of psychedelic literature
• PiHKAL, the 1991 book by the same authors, on phenethylamines
• The Shulgin Index, Volume One: Psychedelic Phenethylamines and Related Compounds (2011)
• Substituted tryptamine
• Substituted lysergamide