Below is my experience with 2-methyl-2-butanol. I wrote the report as it was happening, so it reflects what I felt at the time and should be more accurate than a report written from memory.
2M2B
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
- classified Tentative
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
- classified Tentative
Aliases: Taa, Amylene hydrate, Tert-amyl alcohol, 2-methyl-2-butanol
Summary
2-Methyl-2-butanol (also known as tert-amyl alcohol or 2M2B) is a tertiary alcohol substance that produces depressant, hypnotic, and anxiolytic effects. Historically, it has been used in anesthesia as a component of avertin fluid mixed with tribromoethanol and water. It has a strong solvent smell reminiscent of gasoline and camphor, but with little flavor aside from a burning sensation.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 1-5mL | 5-10mL | 10-15mL | 15mL+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 10-50 min | 6-8 hrs | 4-6 hrs | 8-14 hrs |
Tolerance
Build-up
develops over 1–4 weeks of regular use
Reset
days to weeks depending on duration of use
Tolerance Decay
Full tolerance
3d
Half tolerance
8d
Baseline
~14d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 5 Erowid experience reports
Positive Effects 4
Euphoria
100.0%
70%
Sedation
80.0%
70%
Empathy
60.0%
70%
Anxiety Suppression
60.0%
70%
Adverse Effects 0
Community Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 5 reports 3 neutral 2 cautionary visit
2-methyl-2-butanol First Trial, 4-5-2019 I received the 2m2b in a 100mL bottle. Upon receiving it I opened it and smelled it, and was greeted with the strong odor of rubbing alcohol with a strange, almost minty overtone to it. Going into this experience, my mindset is pretty good.
I wanted to try out 2M2B to see if it would be a legitimate replacement for alcohol. Something to effect euphoria and disinhibit, without the messy effects. Dosed about 22ml of 97.5% 2M2B over the course of about 4hrs.
I recently acquired 100ml of 99.7% pure 2M2B as it is pretty cheap, easy to find, and there are no laws about consumption I could find. Throughout any 2M2B experience I will start burping up the taste and smell of 2M2B, which isn't terrible but it isn't very pleasant either, I will not be recording every time I burp.
Daily medicine for psychiatric problems including anxiety and depression: escitalopram, 20mgs. Lamotrigine, 300mg. Bupropion, 300mg SR. Preface: taking this substance has a lot of unknowns and is inherently risky.
Bluelight 3 threads 3 neutral visit
Below is my experience with 2-methyl-2-butanol. I wrote the report as it was happening, so it reflects what I felt at the time and should be more accurate than a report written from memory.
2-methyl-2-butanol First Trial, 4-5-2019 I received the 2m2b in a 100mL bottle. Upon receiving it I opened it and smelled it, and was greeted with the strong odor of rubbing alcohol with a strange, almost minty overtone to it. Going into this experience, my mindset is pretty good.
Recently I've been looking into novel alcohols to try. Unfortunately I haven't been able to get my hands on 2m2b and my choice of solvents was quite slim. After researching my tiny choice of alcohols I figured 2 butanol would be the alcohol for me to try.
2M2B's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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