2C-T-21
Aliases: Aurora
Summary
2,5-Dimethoxy-4-ethylfluorothiophenethylamine (also known as 2C-T-21, or colloquially as Aurora) is a psychedelic substance of the phenethylamine chemical class that produces psychedelic effects when administered. It is a member of the 2C-x family of psychedelic phenethylamines, all of which were derived from the systematic modification of the mescaline molecule. 2C-T-21 was first synthesized by Alexander Shulgin and documented in his book PiHKAL ("Phenethylamines I Have Known and Loved").
Perspectives
“I noticed something undefined within five minutes which went away. Within 15 minutes I noticed a definite awareness of activity. There was a progressive increase in awareness of something happening over the next two hours with a plateau of perhaps an hour then occurring. The nature of the happening, as usual, was not clear. During the experience I was more talkative than I usually am. I seemed to be interacting with all others. There was no euphoria but, then, there was no body load or nausea, nor was there any nystagmus. I found a little mental confusion at the peak and there was some searching in my memory bank for the right chips at times. I lost the entire line of one of my conversations at one point during the plateau and had to ask what I was talking about. I tested my visual field on a painting and with sufficient concentration I could get the center part to wiggle a little. I didn’t try to observe anything with my eyes closed. I feel that there was something physical about the eyes. In the evening, after-images were quite intense, and the next day my eyes seemed tired or bothered. What can I say? The material was pleasant and I certainly got the feeling of being high but not getting too much out of it. There were no insights or “ah-hahs.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 5-10mg | 10-12mg | 12-15mg | 15mg+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 15-40 min | 30-60 min | 2-5 hrs | 2-4 hrs | 4.8-10.7 hrs |
| Insufflated | 5-15 min | 15-30 min | 2-5 hrs | 2-4 hrs | 4.3-9.8 hrs |
Effect Profile
28 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 20 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong visuals, headspace, auditory effects, and body load
Tolerance
Effects
Aggregated from 20 Erowid and 8 Bluelight experience reports
Positive Effects 37
Adverse Effects 17
Combinations
PiHKAL / TiHKAL
“I noticed something undefined within five minutes which went away. Within 15 minutes I noticed a definite awareness of activity. There was a progressive increase in awareness of something happening over the next two hours with a plateau of perhaps an hour then occurring. The nature of the happening, as usual, was not clear. During the experience I was more talkative than I usually am. I seemed to be interacting with all others. There was no euphoria but, then, there was no body load or nausea, nor was there any nystagmus. I found a little mental confusion at the peak and there was some searching in my memory bank for the right chips at times. I lost the entire line of one of my conversations at one point during the plateau and had to ask what I was talking about. I tested my visual field on a painting and with sufficient concentration I could get the center part to wiggle a little. I didn’t try to observe anything with my eyes closed. I feel that there was something physical about the eyes. In the evening, after-images were quite intense, and the next day my eyes seemed tired or bothered. What can I say? The material was pleasant and I certainly got the feeling of being high but not getting too much out of it. There were no insights or “ah-hahs.”