moleculefinder

Quetiapine

C21H25N3O2S383.5 g/mol Calculated

Also called Seroquel.

An atypical antipsychotic sold as Seroquel, used for schizophrenia, bipolar disorder and as an add-on in depression.

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. Quetiapine on the product labels we hold.

Medicines

SeroquelAdded 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
C21H25N3O2S
Molecular weight
383.5 g/mol
XLogP3octanol/water, log units
2.1
Polar surface areatopological
73.6 Ų
H-bond donors
1
H-bond acceptors
5
Rotatable bonds
6
Complexity
496

Reported Hazard label (GHS), ECHA, HSDB via PubChem

Danger Flammable pictogram (GHS02), Corrosive pictogram (GHS05), Toxic pictogram (GHS06), Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H225, H301, H302, H311, H318, H331, H335, H370, H400, H402, H410, H412

Reported Licence

The US Food and Drug Administration licenses Quetiapine for human use (NDA 020639, authorized September 26, 1997). Drugs@FDA

SMILESC1CN(CCN1CCOCCO)C2=NC3=CC=CC=C3SC4=CC=CC=C42

PubChem CID 5002 · Wikidata Q408535 · InChIKey URKOMYMAXPYINW-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Quetiapine?
An atypical antipsychotic sold as Seroquel, used for schizophrenia, bipolar disorder and as an add-on in depression.
How toxic is Quetiapine?
Its GHS hazard label carries the signal word Danger and the hazard pictograms Flammable, Corrosive, Toxic, Irritant, Health hazard and Environmental. from source
What kind of molecule is Quetiapine?
Quetiapine has the formula C21H25N3O2S and a molecular weight of 383.5 g/mol. MoleculeFinder files it under antipsychotics, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
What else is Quetiapine called?
Quetiapine is also called Seroquel. from source
Who licenses Quetiapine as a medicine?
The US Food and Drug Administration licenses Quetiapine for human use (NDA 020639, authorized September 26, 1997). 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, HSDB 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

Sources and notes
  • Compared side by sidefrom sourceMoleculeFinder comparison notesA molecule we compare it with on its own page.
  • Similar in shapecomputedRDKit Morgan/TanimotoNeighbours by structural fingerprint; the sentence names the chemical groups the two share.
  • The drawingscomputedPubChem structures, drawn by RDKit