Introduction
5-MeO-DMT powder (fumarate) is the (2E)-2-butenedioate salt of 5-methoxy-N,N-dimethyltryptamine, also called O-methylbufotenine. The free base is a 5-methoxytryptamine with two methyl groups on the side-chain nitrogen. It is the N,N-dimethyl homologue of 5-MeO-MiPT and 5-MeO-DALT, and the 5-methoxy analogue of DMT.
The fumarate is supplied as a crystalline powder for work that needs a weighable salt: reference standards, chromatographic method development, and comparative studies of 5-methoxytryptamines. Analytical catalogues list this salt separately from the free base and the hydrochloride. This material is not a medicine, supplement, or diagnostic reagent.
Key features and benefits – Buy 5-MeO-DMT Powder (fumarate)
- Defined fumarate. The salt is a crystalline solid with a stated formula weight. It is not interchangeable with the hydrochloride on a milligram basis.
- 5-Methoxy DMT scaffold. The 5-methoxy group distinguishes it from DMT, and the N,N-dimethyl side chain distinguishes it from 5-MeO-MiPT and 5-MeO-DALT.
- Documented salt identity. Fumarate CAS 2641604-92-2, formula C13H18N2O·C4H4O4, formula weight 334.4. Free base CAS 1019-45-0.
- Batch documentation. Identity and purity should be supported by HPLC and NMR, with mass spectrometry where available.
- Laboratory-only handling. Intended for licensed forensic and in vitro work, not for formulation or human administration.
Specifications Of Buy 5-MeO-DMT Powder (fumarate)
| Property | Detail |
|---|---|
| Product name | 5-MeO-DMT powder (fumarate) |
| Chemical name | 5-Methoxy-N,N-dimethyl-1H-indole-3-ethanamine (2E)-2-butenedioate |
| Synonyms | 5-MeO-DMT fumarate; 5-methoxy-N,N-dimethyltryptamine fumarate; O-methylbufotenine fumarate |
| Fumarate CAS | 2641604-92-2 |
| Free-base CAS | 1019-45-0 |
| Free-base identifier | PubChem CID 1832 |
| Salt formula | C13H18N2O·C4H4O4 |
| Salt formula weight | 334.4 |
| Free-base formula / mass | C13H18N2O; 218.30 g·mol−1 |
| Appearance | Crystalline solid |
| Purity | As stated on the batch COA (reference grade commonly ≥98% by HPLC) |
| Solubility | Reference data: DMSO about 30 mg/mL, DMF about 20 mg/mL, ethanol about 5 mg/mL, PBS (pH 7.2) about 3 mg/mL. Confirm for the batch |
| Storage | Tightly closed container, protected from light; reference storage −20 °C |
| Intended use | Laboratory research only |
Applications in research
Appropriate uses are non-clinical, licensed where required, and institutionally approved:
- Analytical reference material for HPLC, LC-MS, GC-MS, and NMR method development.
- Forensic identification of 5-MeO-DMT versus DMT, bufotenine (5-HO-DMT), 5-MeO-MiPT, and 5-MeO-DALT.
- Salt-form comparison with the hydrochloride (CAS 2427-79-4) and the free base.
- In vitro serotonin-receptor binding or metabolism assays where the protocol and ethics approval explicitly cover this substance.
- Impurity profiling, including comparison with 5-hydroxy-DMT.
- Stability studies of the fumarate under controlled storage.
Do not describe or imply vaporization, ingestion, or any other human route.
Purity and testing
A defensible product claim rests on the batch certificate, not on a generic percentage.
- HPLC for chromatographic purity against a stated method.
- 1H NMR (and 13C NMR where available) for the 5-methoxy singlet, the six-proton N,N-dimethyl signal, and the fumarate alkene near 6.6 ppm.
- Mass spectrometry for the free-base molecular ion consistent with C13H18N2O.
- Confirmation that the counter-ion is fumarate, not hydrochloride, succinate, or free base. A 1:1 salt weighs about 334.4, not 254.8.
- Residual solvent and inorganic limits if the supplier states them.
- Salt stoichiometry by NMR integration or elemental analysis if the ratio is not already stated.
Store the COA with the lot number. Do not copy a purity figure from another vendor’s listing. Do not label the fumarate with the hydrochloride CAS.
Disclaimer
For laboratory research use only. Not for human or veterinary consumption, not for diagnostic or therapeutic use, and not a food, drug, or cosmetic. 5-MeO-DMT is a Schedule I controlled substance in the United States. Other jurisdictions may also control it as a narcotic, psychotropic, or analogue. Buyers are responsible for confirming legality, licensing, import rules, and institutional approval before ordering or handling. Unauthorized possession can be a criminal offense. Handle with standard laboratory PPE in a ventilated area and dispose of waste under local controlled-substance and hazardous-chemical rules. No statement on this page is a claim of safety, efficacy, or fitness for any human application.
Frequently asked questions
What is 5-MeO-DMT fumarate?
It is the fumaric acid salt of 5-methoxy-N,N-dimethyltryptamine. The free base has a methoxy group at the indole 5-position and two methyl groups on the side-chain nitrogen.
Is this the same as the hydrochloride?
No. The hydrochloride is CAS 2427-79-4 and weighs about 254.8 g·mol−1. The fumarate is CAS 2641604-92-2 and weighs about 334.4 as the 1:1 salt. The same nominal milligram quantity is not the same amount of free base.
Is this the same as DMT or 5-MeO-MiPT?
No. DMT lacks the 5-methoxy group. 5-MeO-MiPT has N-methyl and N-isopropyl groups instead of N,N-dimethyl. 5-HO-DMT (bufotenine) has a hydroxy group at position 5, not a methoxy group. They must be identified separately.
Which CAS number applies?
The fumarate is CAS 2641604-92-2. The free base is CAS 1019-45-0. Use the fumarate number for this powder.
What purity is supplied?
Only the figure on the lot COA. A page-level claim such as ≥98% by HPLC should match the analytical method actually used for that batch.
How should it be stored?
Sealed, cool, dry, and protected from light, commonly at −20 °C for reference material. Limit air and moisture exposure after opening, and record the lot number with the COA. Storage must also meet controlled-substance rules where those apply.
Can it be used in humans?
No. It is not sold for consumption. In the United States it is Schedule I. Check local law and licensing before purchase.
What analytical methods confirm identity?
HPLC purity, NMR for the 5-methoxy, N,N-dimethyl, and fumarate signals, and mass spectrometry consistent with C13H18N2O. The COA should state fumarate stoichiometry so formula weight is not taken from the hydrochloride.




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