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SHEET /m/alprazolam · PubChem CID 2118 · CAS 28981-97-7 · REV 2026.07

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Alprazolam

from source

C17H13ClN4 · 308.8 g/mol

Alplax · Alpronax · Niravam · Nu-Alpraz

What is Alprazolam?

The benzodiazepine sold as Xanax, used for anxiety and panic disorder. It is short-acting, which is part of why it is so often misused. from source

CategoryPrescription medicine
Chemical familyAromaticsHalogenated
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

SMILESCC1=NN=C2N1C3=C(C=C(C=C3)Cl)C(=NC2)C4=CC=CC=C4

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
1,220 mg/kg · 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

1,220 mg/kg · low toxicity · LD50 rat oral from source

4 more reported values
  • 812 mg/kgLD50 · oral · mouse
  • 1,020 mg/kgLD50 · oral · mouse
  • 355 mg/kgLD50 · other · rat
  • 380 mg/kgLD50 · other · mouse
WarningIrritantH302from source

Keep roaming

Where Alprazolam leads

Relatedcomputed
Diazepam58% similarBoth carry an aromatic ring and a halogen atom.Midazolam48% similarBoth carry an aromatic ring and a halogen atom.Temazepam42% similarBoth carry an aromatic ring and a halogen atom.

Compare with

Alprazolam vs DiazepamAlprazolam vs Clonazepam

Sources & methodology

PubChem CID
2118
Wikidata
Q319877
Structure
PubChem → RDKit
LD50
PubChem
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