2C-B-FLY
chemical compound

2C-B-FLY is a psychedelic and designer drug of the phenethylamine, 2C, and FLY families. It was first described in 1995 by Aaron Monte, Professor of Chemistry at UW-La Crosse.
Use and effects
2C-B-FLY was not included nor mentioned in Alexander Shulgin's 1991 book PiHKAL (Phenethylamines I Have Known and Loved). In his subsequent 2011 book The Shulgin Index, Volume One: Psychedelic Phenethylamines and Related Compounds however, he listed 2C-B-FLY's dose as 2.5 to 10 mg orally. On the other hand, other sources give 2C-B-FLY's typical dose range as 10 to 20 mg orally. The duration of 2C-B-FLY is said to be 6 to 10 hours but up to 20 hours. The effects of 2C-B-FLY have been reported to include euphoria, enhanced interpersonal communication, improved mood, closed- and open-eye visuals such as brightening of colors and visual hallucinations, feelings of insight, stimulation, tactile enhancement, sexual enhancement, and altered time perception. Other reported effects include pupil dilation, muscle twitching, restlessness, tachycardia, and body temperature changes.
Toxicity
The toxicity of 2C-B-FLY in humans is unknown. Two deaths occurred in October 2009, in Denmark and the United States, after ingestion of a substance that was sold as 2C-B-FLY in a small-time RC shop, but in fact consisted of Bromo-DragonFLY contaminated with a small amount of unidentified impurities.
Begin with the source’s own compact description: “2C-B-FLY” is chemical compound. The dossier treats that line as a proposition to test through 2C-B-FLY, chemical and compound, not as a finished interpretation.
Why this record matters
The phrase “chemical compound” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q4633042. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1995, 1991, 2011 and 2009.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “2C-B-FLY”, its source revision and the description used here.
- Expand the search: follow 2C-B-FLY primary sources, 2C-B-FLY archive and 2C-B-FLY research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “2C-B-FLY”?
- Is the terminology current, historical or disputed?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “2C-B-FLY” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.