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C₉H₈O₄

Aspirin

IUPAC : Aspirin
OrganicBiologicalPharmaceuticalEveryday

The most consumed medicine in the world. Synthesised by Bayer in 1897, aspirin is an anti-inflammatory, antipyretic and antiplatelet drug that irreversibly inhibits cyclooxygenase (COX).

3D ball-and-stick representation of Aspirin (formula C₉H₈O₄). Constituent atoms: C, H, O.
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Physical properties

Molar mass180.158 g/mol
State at 20 °Csolid
Density1.4 g/cm³
Melting point408.00 K (135 °C)
Boiling point—
Solubility (H₂O)3 g/L à 20 °C
pKapKa = 3.5

Structure

Crystal system—
3D render modeBall-and-stick

Uses and applications

  • Analgesic and antipyretic (pain, fever)
  • Anti-inflammatory (rheumatism, arthritis)
  • Antiplatelet drug (low-dose prevention of heart attacks and strokes)
  • Organic synthesis reagent (acylation)

Safety (GHS)

GHS07 · Harmful / irritant
H statements : H302

Harmful at high doses. Contraindicated in children (Reye's syndrome) and in cases of coagulation disorders.

Constituent elements

6C
Carbon
1H
Hydrogen
8O
Oxygen

References

PubChem CID2244
CAS50-78-2
SMILESCC(=O)OC1=CC=CC=C1C(O)=O
Sources : PubChem CID 2244 · NIST Chemistry WebBook