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SHEET /m/buspirone · PubChem CID 2477 · CAS 36505-84-7 · REV 2026.07

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Buspirone

from source

C21H31N5O2 · 385.5 g/mol

Ansial · Bespar

What is Buspirone?

An anti-anxiety medicine sold as Buspar. It is not a benzodiazepine and is not sedating, which is why it is chosen for long-term anxiety. from source

Chemical familyAmides
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

SMILESC1CCC2(C1)CC(=O)N(C(=O)C2)CCCCN3CCN(CC3)C4=NC=CC=N4

Where 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
136 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

136 mg/kg · moderately toxic · LD50 rat oral from source

DangerToxicH301from source

Sources & methodology

PubChem CID
2477
Wikidata
Q412194
Structure
PubChem → RDKit
LD50
PubChem
Data refreshed

How MoleculeFinder sources and labels its data