2C-G-3

2C-G-3

Clinical data
Other names	2,5-Dimethoxy-3,4-(trimethylene)phenethylamine; 3,4-Trimethylene-2,5-dimethoxyphenethylamine; 3,4-Trimethylene-2,5-DMPEA
Routes of administration	Oral[1]
Drug class	Serotonergic psychedelic; Hallucinogen
ATC code	None
Pharmacokinetic data
Duration of action	12–24 hours[1]
Identifiers
IUPAC name 2-(4,7-dimethoxy-2,3-dihydro-1H-inden-5-yl)ethanamine
CAS Number	207740-19-0
PubChem CID	44350123
ChemSpider	23206516
UNII	9UT94P2UB5
ChEMBL	ChEMBL341036
CompTox Dashboard (EPA)	DTXSID701016883
Chemical and physical data
Formula	C13H19NO2
Molar mass	221.300 g·mol^−1
3D model (JSmol)	Interactive image
SMILES COC1=C2CCCC2=C(C(=C1)CCN)OC
InChI InChI=1S/C13H19NO2/c1-15-12-8-9(6-7-14)13(16-2)11-5-3-4-10(11)12/h8H,3-7,14H2,1-2H3 Key:DUYSKWSFDDDWQI-UHFFFAOYSA-N

2C-G-3, also known as 2,5-dimethoxy-3,4-(trimethylene)phenethylamine, is a psychedelic drug of the phenethylamine and 2C families.^[1] It is the derivative of 2C-G (2C-G-0) in which the 3,4-dimethyl groups have been connected via an additional carbon atom to form a cyclopentane ring attached to the benzene ring and hence has a dihydroindene ring system.^[1] In his 1991 book PiHKAL (Phenethylamines I Have Known and Loved) and other publications, Alexander Shulgin lists 2C-G-3's dose as 16 to 25 mg orally and its duration as 12 to 24 hours.^[1][2][3] The effects of 2C-G-3 were reported to include "lots of LSD-like sparkles", easier communication, impairment, and social avoidance, among others.^[1] One report remarked that it was "marvelous".^[1] The chemical synthesis of 2C-G-3 has been described.^[1] The drug was first described in the literature by Shulgin in PiHKAL in 1991.^[1]

See also

• 2C (psychedelics)
• 2C-G (2C-G-0)
• 2C-G-5 and 2C-G-N
• Ganesha and G-3
• 5-APDI (IAP)
• DMMDA

References

1. Shulgin, Alexander; Shulgin, Ann (September 1991). PiHKAL: A Chemical Love Story. Berkeley, California: Transform Press. ISBN 0-9630096-0-5. OCLC 25627628. https://erowid.org/library/books_online/pihkal/pihkal028.shtml
2. Jacob P, Shulgin AT (1994). "Structure-Activity Relationships of the Classic Hallucinogens and Their Analogs". In Lin GC, Glennon RA (eds.). Hallucinogens: An Update (PDF). National Institute on Drug Abuse Research Monograph Series. Vol. 146. National Institute on Drug Abuse. pp. 74–91. PMID 8742795. Archived from the original on 13 July 2025.
3. Shulgin AT (2003). "Basic Pharmacology and Effects". In Laing RR (ed.). Hallucinogens: A Forensic Drug Handbook. Forensic Drug Handbook Series. Elsevier Science. pp. 67–137. ISBN 978-0-12-433951-4. Archived from the original on 13 July 2025.

External links

• 2C-G-3 - Isomer Design
• 2C-G-3 - PiHKAL - Erowid
• 2C-G-3 - PiHKAL - Isomer Design
• The Big & Dandy 2C-G-X Thread - Bluelight