moleculefinder

Mirtazapine

C17H19N3265.35 g/mol Calculated

Also called Mepirzapine.

An antidepressant sold as Remeron. It is sedating and tends to increase appetite, which is why it is chosen for some people over an SSRI.

Sources and notes
  • The introductionfrom sourceMoleculeFinder curated
  • Other namesfrom sourceWikidataIts English label and aliases on 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. Mirtazapine on the product labels we hold.

Medicines

RemeronAdded by the makerActive ingredient

Every product and list we hold

Sources and notes
  • The product labels and their strengthsfrom sourceDailyMed (FDA label)Each label lists the molecule as an ingredient, and an active ingredient at the strength shown.
  • How it gets therefrom sourceMoleculeFinder curatedEach mark is set by hand on our lists, never inferred; a label's ingredient is added by the maker. A row with no mark data says Not marked.
  • The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.

Explore its structure

Choose a part to light it up.

A nitrogen bonded to three carbons, with no hydrogen of its own. Its spare pair of electrons can still pick up a hydrogen ion, so a tertiary amine is a base.

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
C17H19N3
Molecular weight
265.35 g/mol
XLogP3octanol/water, log units
3.3
Polar surface areatopological
19.4 Ų
H-bond donors
0
H-bond acceptors
3
Rotatable bonds
0
Complexity
345

Reported Hazard label (GHS), ECHA via PubChem

Warning Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H302, H312, H332, H336, H351, H373, H411

Reported Licence

The US Food and Drug Administration licenses Mirtazapine for human use (NDA 020415, authorized June 14, 1996). Drugs@FDA

Groups it belongs to

Category
Prescription medicine
Family
Antidepressants
Chemical groups
Aromatics
Elements
Nitrogen
Hazard classes
Irritant, Health hazard, Environmental hazard, GHS Warning
SMILESCN1CCN2C(C1)C3=CC=CC=C3CC4=C2N=CC=C4

PubChem CID 4205 · Wikidata Q421930 · InChIKey RONZAEMNMFQXRA-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Mirtazapine?
An antidepressant sold as Remeron. It is sedating and tends to increase appetite, which is why it is chosen for some people over an SSRI.
How toxic is Mirtazapine?
Its GHS hazard label carries the signal word Warning and the hazard pictograms Irritant, Health hazard and Environmental. from source
What kind of molecule is Mirtazapine?
Mirtazapine has the formula C17H19N3 and a molecular weight of 265.35 g/mol. MoleculeFinder files it under antidepressants, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
What else is Mirtazapine called?
Mirtazapine is also called Mepirzapine. from source
Who licenses Mirtazapine as a medicine?
The US Food and Drug Administration licenses Mirtazapine for human use (NDA 020415, authorized June 14, 1996). from 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.
  • Licencefrom sourceDrugs@FDARead 2026-10-21.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09