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SHEET /m/morphine · PubChem CID 5288826 · CAS 57-27-2 · REV 2026.07

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Morphine

from source

C17H19NO3 · 285.34 g/mol

morfina · Duromorph · Meconium · Morphinism

What is Morphine?

The reference opioid painkiller and the molecule that gives the opium poppy its power. Every other opioid is measured against it. from source

CategoryPrescription medicine
Chemical familyAlcoholsAromaticsPhenolsEthers
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

SMILESCN1CC[C@]23[C@@H]4[C@H]1CC5=C2C(=C(C=C5)O)O[C@H]3[C@H](C=C4)O

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
335 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

335 mg/kg · low toxicity · LD50 rat oral from source

5 more reported values
  • 461 mg/kgLD50 · oral · rat
  • 600 mg/kgLD50 · oral · mouse
  • 109 mg/kgLD50 · other · rat
  • 140 mg/kgLD50 · iv · rat
  • 160 mg/kgLD50 · other · rat
WarningIrritantHealth hazardH302, H317, H336, H361, H362from source

Keep roaming

Where Morphine leads

Relatedcomputed
Codeine76% similarBoth carry an alcohol and an ether group.Hydromorphone54% similarBoth carry a phenol and an ether group.Hydrocodone39% similarBoth carry an ether group.

Compare with

Morphine vs Fentanyl

Sources & methodology

PubChem CID
5288826
Wikidata
Q81225
Structure
PubChem → RDKit
LD50
PubChem
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