CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

6-Chloro-MDA

pharmaceutical compound

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 1, 2026
Entity authorityQ136768220
Source-derived summary

6-Chloro-MDA, also known as 6-chloro-3,4-methylenedioxyamphetamine or as 2-chloro-4,5-methylenedioxyamphetamine (2-Cl-4,5-MDA), is a psychoactive drug of the phenethylamine, amphetamine, and MDxx families related to 3,4-methylenedioxyamphetamine (MDA). It is the 6-chloro derivative of MDA. The drug has an active dose of 160 mg orally and a duration of approximately 8 hours. It is a weak monoamine oxidase inhibitor (MAOI). 6-Chloro-MDA was first described in the scientific literature by 1970. The properties of 6-chloro-MDA in humans were described by Daniel Trachsel and colleagues in 2013 via personal communication with P. Rausch in 2009.

Editorial summary

This brief starts where responsible research should: with the source description of “6-Chloro-MDA” as pharmaceutical compound. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1970, 2013, 2009—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where 6-Chloro-MDA, pharmaceutical and compound can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as pharmaceutical compound. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Mar 1, 2026. The linked authority identifier is Q136768220. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1970, 2013 and 2009.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “6-Chloro-MDA”, its source revision and the description used here.
  2. Expand the search: follow 6-Chloro-MDA primary sources, 6-Chloro-MDA archive and 6-Chloro-MDA research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “6-Chloro-MDA”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from 6-Chloro-MDA” 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.