SHEET /m/acetic-acid · PubChem CID 176 · CAS 64-19-7 · REV 2026.07
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Acetic acid from source
C2H4O2 · 60.05 g/mol
ethanoic acid · Acetic acid glacial · Ethylic acid · Vinegar acid
chemical compound
CategoryFood & flavor
Chemical familyCarboxylic Acids
Fig. 1 · 2D structure RDKit
CC(=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 Acetic acid is 3,530 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
247.1 g
a median lethal dose scaled to 154 lb (247,100 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
3,530 mg/kg · very low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
3 more reported values
- 4,960 mg/kgLD50 · oral · mouse
- 525 mg/kgLD50 · iv · mouse
- 1,060 mg/kgLD50 · dermal · rabbit
DangerFlammableCorrosiveIrritantHealth hazardH226, H303, H312, H314, H318, H334, H370, H371from source
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