moleculefinder

SHEET /m/salicylic-acid · PubChem CID 338 · CAS 69-72-7 · REV 2026.07

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Salicylic acid from source

C7H6O3 · 138.12 g/mol

2-Hydroxybenzoic acid · o-hydroxybenzoic acid · 2-Carboxyphenol · o-Carboxyphenol

Also sold as Stridex, Clearasil, Compound W from source

chemical compound

CategoryOTC medicine
LeaderboardsBiggestDeadliest

Fig. 1 · 2D structure RDKit

C1=CC=C(C(=C1)C(=O)O)O

Where you'll find it

Not yet mapped to everyday foods or products.

The dose makes the poison inferred

A reported mouse oral LD50 for Salicylic acid is 480 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:

33.6 g
a median lethal dose scaled to 154 lb (33,600 mg)

“The dose makes the poison” is a cross-species estimate shown as neutral science, not a threshold anyone should act on. Real toxicity depends on the person, not body mass alone.

Toxicity & hazards

Toxicity · LD50

480 mg/kg · low toxicity · LD50 mouse oral from source

The dose lens above scales this to a body weight.

3 more reported values
  • 891 mg/kgLD50 · oral · rat
  • 520 mg/kgLD50 · other · mouse
  • 2,000 mg/kgLD50 · dermal · rat
DangerCorrosiveIrritantHealth hazardH302, H312, H315, H317, H318, H319, H361, H370, H372, H402from source

Keep roaming

Where Salicylic acid leads