The FASA Method

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The FASA Method

Materials Required Checklist.png
Source Material:
  • Freebase DMT Saturated Acetone or NPS
  • Anhydrous Acetone
  • Fumaric Acid

The FASA, or fumaric acid saturated acetone, method is a method employed to render DMT Fumarate.


DMT Fumarate is reportedly quite stable and resistant to oxidization or other forms of degradation. It is notably resistant to heat, and as such is able to withstand low-temperature oven-drying. Certain other related compounds, such as jungle-spice and bufotenine are also able to crystallize as a fumarate. Defatting is not required prior to employing FASA methods, as oils and most other impurities should not interfere with this method's procedure or the yield
Because DMT Fumarate is water-soluble, it is also well-suited for oral administration in conjunction with harmaloids, either mixed into a beverage or encapsulated.


The FASA method employs the firstly, the solubility of fumaric acid in acetone, and secondly, solubility of freebase DMT in acetone, and thirdly, the insolubility of DMT Fumarate in acetone or the non-polar solvents commonly utilized for extraction. The solubility of both DMT and fumaric acid in acetone facilitates their reaction to produce a crystalline DMT salt which is completely insoluble in acetone or non-polar solvents.

FASA Molecule

Two DMT molecules forming a complex with one fumaric acid molecule to form DMT Fumarate.

One fumaric acid molecule attaches to two DMT freebase molecules.


Rendering Crystalline DMT Fumarate Cog.png
  1. Dissolve about 7mg fumaric acid per mL of fresh anhydrous acetone to prepare a FASA solution, allotting adequate time and stirring for complete saturation, and allowing any excess to settle to the bottom.
    • It is recommended that the solution be prepared in slight excess of fumaric acid rather than an excess of acetone for the procedure to be most effective.
  2. Prepare a DMT-saturated solution using either acetone or an NPS ensuring that its container will facilitate the collection of a precipitate and protect the solution from moisture.
    • Naphtha, however, is reported to cause fumaric acid to precipitate out of acetone, disrupting any significant chemical reaction from occurring.
  3. Add FASA dropwise to the DMT saturated solution until no more reaction can be observed.
    • A precipitate should form wherever the drops are added, but will eventually become too thick of a cloud to observe any new reaction occurring.
  4. Once the solution settles enough for a clear segment of the solution to be observed where drops of FASA are to be added, repeat step 3.
  5. Repeat steps 3-4 until no more reaction occurs, and allow to settle completely.
  6. Carefully decant the solvent.
    • If acetone is the only solvent used, it can be reused as FASA, or if no significant excess of FASA has be added, it can be reused for drytek extraction.
    • If an NPS is used, the acetone and fumaric acid can be wash out with water and separated by standard separatory methods.
  7. Collect the salted product onto an evaporation dish and dry by air-drying or by oven-drying on the lowest possible heat setting.
    • It is advisable to wash the product with anhydrous acetone to remove any potential excess of fumaric acid or NPS.
  8. Store the dry product away from heat and moisture.