moleculefinder

SHEET /m/prochlorperazine · PubChem CID 4917 · CAS 58-38-8 · REV 2026.07

marquee

Prochlorperazine

from source

C20H24ClN3S · 373.9 g/mol

Capazine · Chlormeprazine · Kronocin · Meterazine

What is Prochlorperazine?

A phenothiazine used mainly for severe nausea and vertigo, and at higher strength for psychosis. Prochlorperazine (C20H24ClN3S, 374 g/mol) is an antipsychotic dispensed on prescription. from source

CategoryPrescription medicine
Chemical familyAromaticsHalogenated
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

SMILESCN1CCN(CC1)CCCN2C3=CC=CC=C3SC4=C2C=C(C=C4)Cl

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
1,800 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

1,800 mg/kg · low toxicity · LD50 rat oral from source

3 more reported values
  • 400 mg/kgLD50 · oral · mouse
  • 120 mg/kgLD50 · other · mouse
  • 400 mg/kgLD50 · other · mouse
WarningIrritantHealth hazardH302, H336, H362from source

Keep roaming

Where Prochlorperazine leads

Relatedcomputed
Chlorpromazine65% similarBoth carry an aromatic ring and a halogen atom.Clomipramine44% similarBoth carry an aromatic ring and a halogen atom.Clozapine37% similarBoth carry an aromatic ring and a halogen atom.

Sources & methodology

PubChem CID
4917
Wikidata
Q2359690
Structure
PubChem → RDKit
LD50
PubChem
Similar molecules
MoleculeFinder fingerprint similarity
Data refreshed

How MoleculeFinder sources and labels its data