2C-G
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 28 combo interactions documented
- classified Tentative
- classified Research-chemical
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 28 combo interactions documented
- classified Tentative
- classified Research-chemical
Aliases: 2cg
Summary
2C-G is an extremely rare and long-acting psychedelic phenethylamine first synthesized by Alexander Shulgin. It is notable for its exceptionally long duration of 18-30 hours and relatively mild visual effects compared to other 2C compounds. Shulgin described it as an 'insight-enhancer' with effects similar to Ganesha.
Perspectives
“I am completely functional, with writing and answering the telephone, but the coffee really tastes most strange. While the mental effects (to a ++ only) were dispersing, the body still had quite a bit of memory of the day. Sleep was fine, and desirable, in the early evening.”
Dose Information
| ROA | Light | Common | Strong |
|---|---|---|---|
| Oral | 20-25mg | 25-30mg | 30mg+ |
Sources
Oral
Dose ladder — TripSitOnset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 1-2 hrs | 4-8 hrs | 8-20 hrs | 15-35 hrs |
Effect Profile
Scores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong visuals with moderate headspace, mild auditory effects and body load
Tolerance
Tolerance Decay
Pattern extrapolated from community reports on 2C-x and general psychedelic tolerance models (5-HT2A downregulation). Expect markedly diminished effects for several days, with near-baseline by 2–4 weeks. Data quality is low; individual variability is large.
Cross-Tolerances
Effects
Effect glossary — · full glossary
- Change in perception
- Closed/Open eye visuals
Combinations
Cross-Check 2C-G with another substancePiHKAL / TiHKAL
“I am completely functional, with writing and answering the telephone, but the coffee really tastes most strange. While the mental effects (to a ++ only) were dispersing, the body still had quite a bit of memory of the day. Sleep was fine, and desirable, in the early evening.”
Helpful Links
Add to PsychonautWiki Journal
The PsychonautWiki Journal logging app doesn't include every substance. To track 2C-G there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:
2C-G Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 20-25 · common 25-30 · strong 30+ Oral duration: onset 1-2h · peak 4-8h · offset 8-20h · total 15-35h · after-effects 48h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 27.5 mg (Oral).
The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for 2C-G? Let us know. Reports are reviewed by moderators — this is not posted publicly.