SHEET /m/aspirin · PubChem CID 2244 · CAS 50-78-2 · REV 2026.07
Aspirin from source
C9H8O4 · 180.16 g/mol
ACETYLSALICYLIC ACID · 2-Acetoxybenzoic acid · 2-(Acetyloxy)benzoic acid · Acylpyrin
Also sold as Bayer, Bufferin, Ecotrin from source
medication used to treat pain and decrease the risk of heart disease
Fig. 1 · 2D structure RDKit
CC(=O)OC1=CC=CC=C1C(=O)O
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported rat oral LD50 for Aspirin is 200 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
“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
200 mg/kg · moderately toxic · LD50 rat oral from source
The dose lens above scales this to a body weight.
5 more reported values
- 250 mg/kgLD50 · oral · mouse
- 1,010 mg/kgLD50 · oral · rabbit
- 1,500 mg/kgLD50 · oral · rat
- 1,800 mg/kgLD50 · oral · rabbit
- 500 mg/kgLD50 · other · rabbit
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