Temazepam
Also called Hydroxydiazepam, Methyloxazepam, N-Methyloxazepam and Nocturne.
A benzodiazepine sold as Restoril, prescribed for short-term insomnia. Temazepam (C16H13ClN2O2, 301 g/mol) is a benzodiazepine dispensed on prescription.
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. Temazepam 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 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.
An O-H on a carbon that is not part of an aromatic ring, the group that makes a molecule an alcohol. It both gives and accepts hydrogen bonds, which helps the molecule mix with water.
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
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 sideAlso 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
- C16H13ClN2O2
- Molecular weight
- 300.74 g/mol
- XLogP3octanol/water, log units
- 2.2
- Polar surface areatopological
- 52.9 Ų
- H-bond donors
- 1
- H-bond acceptors
- 3
- Rotatable bonds
- 1
- Complexity
- 434
Reported Hazard label (GHS), ECHA via PubChem
Warning Irritant pictogram (GHS07); hazard statements H302
Reported Licence
The US Food and Drug Administration licenses Temazepam for human use (NDA 018163, authorized February 27, 1981). Drugs@FDA
Groups it belongs to
- Category
- Prescription medicine
- Family
- Benzodiazepines
- Chemical groups
- Alcohols, Aromatics, Amides, Halogenated
- Hazard classes
- Irritant, GHS Warning
CN1C2=C(C=C(C=C2)Cl)C(=NC(C1=O)O)C3=CC=CC=C3PubChem CID 5391 · Wikidata Q414796 · InChIKey SEQDDYPDSLOBDC-UHFFFAOYSA-N · Data refreshed
Questions
- What is Temazepam?
- A benzodiazepine sold as Restoril, prescribed for short-term insomnia. Temazepam (C16H13ClN2O2, 301 g/mol) is a benzodiazepine dispensed on prescription.
- How toxic is Temazepam?
- Its GHS hazard label carries the signal word Warning and the hazard pictogram Irritant. from source
- What kind of molecule is Temazepam?
- Temazepam has the formula C16H13ClN2O2 and a molecular weight of 300.74 g/mol. MoleculeFinder files it under benzodiazepines, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
- Who licenses Temazepam as a medicine?
- The US Food and Drug Administration licenses Temazepam for human use (NDA 018163, authorized February 27, 1981). 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
More related molecules
- Lorazepam Also a benzodiazepine
- Alprazolam Also a benzodiazepine
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