moleculefinder

Olanzapine

C17H20N4S312.4 g/mol Calculated

Also called Zyprexa Zydis.

An atypical antipsychotic sold as Zyprexa, used for schizophrenia and bipolar disorder. Olanzapine (C17H20N4S, 312 g/mol) is an antipsychotic dispensed on prescription.

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. Olanzapine on the product labels we hold.

Medicines

ZyprexaAdded 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.

Compare a related molecule

Quetiapine

Olanzapine

Quetiapine binds the dopamine D2 receptor loosely and is heavily sedating, while olanzapine binds more firmly and is more strongly tied to weight gain.

Quetiapine vs Olanzapine, side by side
Sources and notes
  • The sentencefrom sourceMoleculeFinder comparison notesThe pair's answer line.
  • The two drawingscomputedPubChem structures, drawn by RDKitThe two drawings side by side.

Properties and sources

Calculated by PubChem

Molecular formula
C17H20N4S
Molecular weight
312.4 g/mol
XLogP3octanol/water, log units
2.9
Polar surface areatopological
59.1 Ų
H-bond donors
1
H-bond acceptors
4
Rotatable bonds
1
Complexity
432

Reported Hazard label (GHS), ECHA via PubChem

Danger Toxic pictogram (GHS06), Irritant pictogram (GHS07) and Health hazard pictogram (GHS08); hazard statements H301, H315, H317, H319, H336, H373

Reported Licence

The US Food and Drug Administration licenses Olanzapine for human use (NDA 020592, authorized September 30, 1996), as Zyprexa. Drugs@FDA

Groups it belongs to

Category
Prescription medicine
Family
Antipsychotics
Chemical groups
Amines, Aromatics
Elements
Nitrogen, Sulfur
Hazard classes
Acutely toxic, Irritant, Health hazard, GHS Danger
SMILESCC1=CC2=C(S1)NC3=CC=CC=C3N=C2N4CCN(CC4)C

PubChem CID 135398745 · Wikidata Q201872 · InChIKey KVWDHTXUZHCGIO-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Olanzapine?
An atypical antipsychotic sold as Zyprexa, used for schizophrenia and bipolar disorder. Olanzapine (C17H20N4S, 312 g/mol) is an antipsychotic dispensed on prescription.
How toxic is Olanzapine?
Its GHS hazard label carries the signal word Danger and the hazard pictograms Toxic, Irritant and Health hazard. from source
What kind of molecule is Olanzapine?
Olanzapine has the formula C17H20N4S and a molecular weight of 312.4 g/mol. MoleculeFinder files it under antipsychotics, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
What else is Olanzapine called?
Olanzapine is also called Zyprexa Zydis. from source
Who licenses Olanzapine as a medicine?
The US Food and Drug Administration licenses Olanzapine for human use (NDA 020592, authorized September 30, 1996), as Zyprexa. 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

Keep exploring

Compared side by side with olanzapineQuetiapineC21H25N3O2SAlso an antipsychoticClozapineC18H19ClN4
Sources and notes
  • Compared side by sidefrom sourceMoleculeFinder comparison notesA molecule we compare it with on its own page.
  • The same kind of moleculefrom sourceMoleculeFinder curated groupsA structural neighbour in the same family or type group; the line names the group in its own words.
  • The drawingscomputedPubChem structures, drawn by RDKit