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SHEET /m/clonazepam · PubChem CID 2802 · CAS 1622-61-3 · REV 2026.07

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Clonazepam

from source

C15H10ClN3O3 · 315.71 g/mol

Iktorivil · Klonopin · Ravotril · Rivatril

What is Clonazepam?

The benzodiazepine sold as Klonopin, used for seizure disorders and panic disorder. It is long-acting compared with most of its class. from source

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Fig. 1 · 2D structure RDKit

SMILESC1C(=O)NC2=C(C=C(C=C2)[N+](=O)[O-])C(=N1)C3=CC=CC=C3Cl

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
15,000 mg/kg · very low toxicity
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

15,000 mg/kg · very low toxicity · LD50 rat oral from source

3 more reported values
  • 2,000 mg/kgLD50 · oral · mouse
  • 13,300 mg/kgLD50 · other · mouse
  • 14,200 mg/kgLD50 · other · rat
DangerIrritantHealth hazardH336, H360, H361, H362, H412, H413from source

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Where Clonazepam leads

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Sources & methodology

PubChem CID
2802
Wikidata
Q407988
Structure
PubChem → RDKit
LD50
PubChem
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MoleculeFinder fingerprint similarity
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