moleculefinder

Tianeptine

C21H25ClN2O4S437 g/mol Calculated

Also called Coaxil and Stablon.

An atypical antidepressant prescribed in France and parts of Asia, and sold in the United States as an unregulated supplement nicknamed gas station heroin.

Sources and notes
  • The introductionfrom sourceMoleculeFinder curated
  • Other namesfrom sourcePubChem / Wikidata
  • Formula and weightcomputedPubChem
  • 2D drawingcomputedPubChem structure, drawn by RDKit
  • 3D modelfrom sourcePubChem 3D conformerLoaded after the page has painted, and on a phone only when you ask for it; the 2D drawing shows until it arrives.

Where you encounter it

Dispensed on prescription, not sold on a shelf.

Sources and notes
  • The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.

Explore its structure

Choose a part to light it up.

A carbon carrying both a C=O and an O-H, written COOH. In water it gives up that hydrogen, which is what makes the molecule an acid.

From: standard chemistry.

Sources and notes
  • The drawingcomputedPubChem structure, drawn by RDKitThe page's one shipped drawing, with the chosen part lit in amber under it.
  • The partscomputedFound by ruleEach part is found by a chemical pattern, never picked by hand atom by atom; its words say where they come from.

Properties and sources

Calculated by PubChem

Molecular formula
C21H25ClN2O4S
Molecular weight
437 g/mol
XLogP3octanol/water, log units
1.2
Polar surface areatopological
95.1 Ų
H-bond donors
2
H-bond acceptors
6
Rotatable bonds
8
Complexity
654

Reported Hazard label (GHS), ECHA via PubChem

Warning Health hazard pictogram (GHS08); hazard statements H361, H362, H373

Groups it belongs to

Category
Prescription medicine
Family
Antidepressants
Chemical groups
Carboxylic Acids, Amines, Aromatics, Halogenated
Elements
Chlorine, Nitrogen, Sulfur
Hazard classes
Health hazard, GHS Warning
SMILESCN1C2=CC=CC=C2C(C3=C(S1(=O)=O)C=C(C=C3)Cl)NCCCCCCC(=O)O

PubChem CID 68870 · Wikidata Q424260 · InChIKey JICJBGPOMZQUBB-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Tianeptine?
An atypical antidepressant prescribed in France and parts of Asia, and sold in the United States as an unregulated supplement nicknamed gas station heroin.
How toxic is Tianeptine?
Its GHS hazard label carries the signal word Warning and the hazard pictogram Health hazard. from source
What kind of molecule is Tianeptine?
Tianeptine has the formula C21H25ClN2O4S and a molecular weight of 437 g/mol. MoleculeFinder files it under antidepressants, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
Sources and notes
  • Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
  • Hazard labelfrom sourceECHA via PubChemThe label combines these classifications.
  • ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09