SHEET /m/pentobarbital · PubChem CID 4737 · CAS 76-74-4 · REV 2026.07
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Pentobarbital
from sourceC11H18N2O3 · 226.27 g/mol
pentobarbituric acid · pentobarbitone · Dorsital · Ethaminal
What is Pentobarbital?
A barbiturate once used for sedation and seizures, now mostly a veterinary anaesthetic and euthanasia agent. from source
CategoryPrescription medicine
Chemical familyAmides
Fig. 1 · 2D structure RDKit
SMILES
CCCC(C)C1(C(=O)NC(=O)NC1=O)CCWhere you'll find it
Dispensed on prescription, not sold on a shelf. See the rest of the prescription medicine group.
Relative acute toxicity from source
Animal study data · LD50
- Reported LD50
- 118 mg/kg · moderately toxic
- Species
- rat
- Route
- oral
An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.
Toxicity & hazards
Toxicity · LD50
118 mg/kg · moderately toxic · LD50 rat oral from source
3 more reported values
- 125 mg/kgLD50 · oral · rat
- 108 mg/kgLD50 · other · rat
- 144 mg/kgLD50 · other · rat
DangerToxicHealth hazardH301, H361from source
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