O-DSMT Powder

O-desmethyltramadol · μ-opioid agonist · 99.6% powder

5.0 · 1 review
For research use only. Not for human consumption. Must be 18+ to purchase.

What is O-DSMT?

O-DSMT (O-desmethyltramadol, INN desmetramadol) is the active metabolite responsible for the opioid activity of tramadol, supplied as a high-purity 99.6% powder reference material for in-vitro and analytical research.

Specifications

  • Synonyms: O-desmethyltramadol, desmetramadol, ODT
  • CAS number: 73986-53-5 (racemic free base)
  • Class: μ-opioid receptor agonist
  • Molecular formula: C15H23NO2
  • Molecular weight: ~249.35 g/mol
  • Chemical name: 3-[2-[(dimethylamino)methyl]-1-hydroxycyclohexyl]phenol
  • Purity: 99.6%
  • Available sizes: 100 mg · 250 mg · 500 mg · 1 g
  • Storage: keep sealed, cool, dry and away from light

In research settings O-DSMT is studied as a G-protein-biased full agonist at the μ-opioid receptor — the metabolite that mediates the opioid activity attributed to tramadol.

Quality & documentation: every batch is third-party tested; a current Certificate of Analysis is available on request.

Shipping: plain, unbranded packaging shipped from the Netherlands across the EU.

For laboratory research use only. Not for human or veterinary consumption. Buyers must be 18+.

Customer reviews

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1 review
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Finally a source for O-DSMT

Could not find O-Desmethyltramadol anywhere else in the EU. These guys had it in stock at 99.6%, the powder was clean and well sealed, and it shipped fast.

Niels K. ✓ Verified buyer · 14 jun 2026