SHEET /m/secobarbital · PubChem CID 5193 · CAS 76-73-3 · REV 2026.07
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Secobarbital
from sourceC12H18N2O3 · 238.28 g/mol
quinalbarbitone · secobarbitone · Evronal · Hypotrol
What is Secobarbital?
A short-acting barbiturate sold as Seconal, once a common sleeping pill and now rarely prescribed. Secobarbital (C12H18N2O3, 238 g/mol) is a barbiturate dispensed on prescription. from source
CategoryPrescription medicine
Chemical familyAmides
Fig. 1 · 2D structure RDKit
SMILES
CCCC(C)C1(C(=O)NC(=O)NC1=O)CC=CWhere 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
- 125 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
125 mg/kg · moderately toxic · LD50 rat oral from source
3 more reported values
- 267 mg/kgLD50 · oral · mouse
- 65 mg/kgLD50 · iv · rat
- 116 mg/kgLD50 · other · mouse
DangerToxicIrritantH301, H315, H319, H335from source
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