CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

DMMDA-2

chemical compound

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 14, 2026
Entity authorityQ4596765
Source-derived summary

DMMDA-2, also known as 2,3-dimethoxy-4,5-methylenedioxyamphetamine or as 5,6-dimethoxy-MDA, is a psychedelic drug of the phenethylamine, amphetamine, and MDxx families related to MDA. It is the derivative of MDA with methoxy groups at the 5 and 6 positions and of MMDA and MMDA-2 with an additional methoxy group at either of these positions.

Use and effects

In his book PiHKAL (Phenethylamines I Have Known and Loved), Alexander Shulgin lists DMMDA-2's dose as about 50 mg orally and its duration as unknown. Threshold effects are said to occur at a dose of 28 mg (~0.4 mg/kg) or 30 to 50 mg orally. In earlier publications, Shulgin listed its dose range as approximately 0.6 to 1 mg/kg (or ~42–70 mg for a 70-kg person) orally. In a subsequent publication, he listed its dose as greater than 50 mg orally.

Information on the properties and effects of DMMDA-2 in humans is sparse and its specific effects were not described, but it has been said to be "much like MDA" and to have similar effects as DMMDA. The effects of DMMDA and DMMDA-2 may reportedly be different from those of other related psychedelics like mescaline, MMDA, and MMDA-2. DMMDA-2 has approximately 5 times the potency of mescaline. It is more potent than MDA but less potent than DMMDA.

Interactions

Pharmacology

Pharmacodynamics

DMMDA-2 showed reduced albeit significant activity as a serotonin releasing agent compared to certain related compounds like MDA and MMDA. It showed no activity as a dopamine releasing agent, in contrast to MDA but similarly to MMDA and MMDA-2. Whereas DMMDA-2 significantly induced serotonin release, MMDA-2 was inactive in terms of serotonin and dopamine release induction.

Chemistry

Synthesis

The chemical synthesis of DMMDA-2 has been described.

Editorial summary

Begin with the source’s own compact description: “DMMDA-2” is chemical compound. The dossier treats that line as a proposition to test through DMMDA-2, chemical and compound, not as a finished interpretation.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 282-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, DMMDA-2, chemical and compound is the immediate research focus.
Editorial analysis

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.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q4596765. None of the 0 selected statements returned an explicit reference.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. 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.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “DMMDA-2”, its source revision and the description used here.
  2. Expand the search: follow DMMDA-2 primary sources, DMMDA-2 archive and DMMDA-2 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 “DMMDA-2”?
  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from DMMDA-2” 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.