Citalopram
Also called Cipram, Cipramil, Citadur and Citox.
An SSRI antidepressant sold as Celexa, used for depression. Escitalopram is its single active mirror image.
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. Citalopram on the product labels we hold.
Medicines
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.
An oxygen bridging two carbons, written C-O-C. It accepts hydrogen bonds but has no hydrogen to give, and it is slow to react.
From: standard chemistry.
Fluorine, chlorine, bromine or iodine bonded to carbon. Each pulls electrons toward itself, and each is larger than the hydrogen the carbon would otherwise carry.
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
Escitalopram
Citalopram
The same atoms; escitalopram is one mirror-image form, citalopram a mix of both.
Citalopram is a mix of two mirror-image forms and escitalopram is the active one isolated, so half the amount does roughly the same work.
Escitalopram vs Citalopram, side by sideSources and notes
- The sentencefrom sourceMoleculeFinder comparison notesThe pair's answer line.
- The two drawingscomputedPubChem structures, drawn by RDKitDrawn the same way round; the amber marks where the two differ.
- The captionfrom sourceMoleculeFinder curated
Properties and sources
Calculated by PubChem
- Molecular formula
- C20H21FN2O
- Molecular weight
- 324.4 g/mol
- XLogP3octanol/water, log units
- 3.2
- Polar surface areatopological
- 36.3 Ų
- H-bond donors
- 0
- H-bond acceptors
- 4
- Rotatable bonds
- 5
- Complexity
- 466
Reported Hazard label (GHS), ECHA via PubChem
Warning Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H302, H312, H315, H317, H319, H332, H335, H361, H410
Reported Licence
The US Food and Drug Administration licenses Citalopram for human use (NDA 020822, authorized July 17, 1998), as Celexa. Drugs@FDA
Groups it belongs to
- Category
- Prescription medicine
- Family
- SSRIs
- Chemical groups
- Aromatics, Ethers, Halogenated
- Hazard classes
- Irritant, Health hazard, Environmental hazard, GHS Warning
CN(C)CCCC1(C2=C(CO1)C=C(C=C2)C#N)C3=CC=C(C=C3)FPubChem CID 2771 · Wikidata Q409672 · InChIKey WSEQXVZVJXJVFP-UHFFFAOYSA-N · Data refreshed
Questions
- What is Citalopram?
- An SSRI antidepressant sold as Celexa, used for depression. Escitalopram is its single active mirror image.
- How toxic is Citalopram?
- 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 Citalopram?
- Citalopram has the formula C20H21FN2O and a molecular weight of 324.4 g/mol. MoleculeFinder files it under SSRIs, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
- Who licenses Citalopram as a medicine?
- The US Food and Drug Administration licenses Citalopram for human use (NDA 020822, authorized July 17, 1998), as Celexa. 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
Sources and notes
- A group apartfrom sourceMoleculeFinder comparison captions
- The drawingscomputedPubChem structures, drawn by RDKit