moleculefinder

Zolpidem

C19H21N3O307.4 g/mol Calculated

Also called Ambien, Edlular, Sanval and Zolpi Lich.

A sleep medicine sold as Ambien. It is not a benzodiazepine but works on the same receptor, which is why it can cause sleepwalking.

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. Zolpidem on the product labels we hold.

Medicines

AmbienAdded 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 C=O bonded to a nitrogen, the same link that joins amino acids in a protein. It is sturdy, and its nitrogen is not a base the way an amine's is.

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

Zolpidem

Temazepam

Temazepam is a full benzodiazepine that also eases anxiety and relaxes muscle, while zolpidem is not a benzodiazepine and targets sedation more selectively.

Zolpidem vs Temazepam, side by side

Also compared

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
C19H21N3O
Molecular weight
307.4 g/mol
XLogP3octanol/water, log units
2.5
Polar surface areatopological
37.6 Ų
H-bond donors
0
H-bond acceptors
2
Rotatable bonds
3
Complexity
417

Reported Hazard label (GHS), ECHA via PubChem

Warning Irritant pictogram (GHS07) and Environmental pictogram (GHS09); hazard statements H302, H336, H411

Reported Licence

The US Food and Drug Administration licenses Zolpidem for human use (NDA 019908, authorized December 16, 1992). Drugs@FDA

Groups it belongs to

Category
Prescription medicine
Family
Sleep medicines
Chemical groups
Aromatics, Amides
Elements
Nitrogen
Hazard classes
Irritant, Environmental hazard, GHS Warning
SMILESCC1=CC=C(C=C1)C2=C(N3C=C(C=CC3=N2)C)CC(=O)N(C)C

PubChem CID 5732 · Wikidata Q218842 · InChIKey ZAFYATHCZYHLPB-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Zolpidem?
A sleep medicine sold as Ambien. It is not a benzodiazepine but works on the same receptor, which is why it can cause sleepwalking.
How toxic is Zolpidem?
Its GHS hazard label carries the signal word Warning and the hazard pictograms Irritant and Environmental. from source
What kind of molecule is Zolpidem?
Zolpidem has the formula C19H21N3O and a molecular weight of 307.4 g/mol. MoleculeFinder files it under sleep medicines, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
Who licenses Zolpidem as a medicine?
The US Food and Drug Administration licenses Zolpidem for human use (NDA 019908, authorized December 16, 1992). 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 zolpidemTemazepamC16H13ClN2O2Compared side by side with zolpidemMelatoninC13H16N2O2
Sources and notes
  • Compared side by sidefrom sourceMoleculeFinder comparison notesA molecule we compare it with on its own page.
  • The drawingscomputedPubChem structures, drawn by RDKit