SHEET /m/formic-acid · PubChem CID 284 · CAS 64-18-6 · REV 2026.07
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Formic acid
from sourceCH2O2 · 46.025 g/mol
hydrogen carboxylic acid · aminic acid · methanoic acid · methoic acid
What is Formic acid?
The acid an ant injects when it bites, and the sting of a nettle. Industrially it is a descaler and a preservative in animal feed. from source
CategoryEveryday chemistry
Fig. 1 · 2D structure RDKit
SMILES
C(=O)ORelative acute toxicity from source
Animal study data · LD50
- Reported LD50
- 700 mg/kg · low toxicity
- Species
- mouse
- 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
700 mg/kg · low toxicity · LD50 mouse oral from source
2 more reported values
- 4,000 mg/kgLD50 · oral · dog
- 3,000 mg/kgLD50 · iv · dog
DangerFlammableCorrosiveToxicIrritantHealth hazardH226, H290, H302, H314, H318, H331, H332, H335, H361, H370, H372, H373, H402from source