SHEET /m/deet · PubChem CID 4284 · CAS 134-62-3 · REV 2026.07
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DEET from source
C12H17NO · 191.27 g/mol
Diethyltoluamide · N,N-Diethyl-3-methylbenzamide · N,N-Diethyl-m-toluamide · Diethyl toluamide
chemical compound
CategoryEveryday chemistry
Chemical familyAromatics
Fig. 1 · 2D structure RDKit
CCN(CC)C(=O)C1=CC=CC(=C1)C
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 DEET is 1,892 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
132.4 g
a median lethal dose scaled to 154 lb (132,440 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
1,892 mg/kg · low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
1 more reported value
- 5,000 mg/kgLD50 · dermal · rat
WarningIrritantH302, H315, H319, H320, H336, H402, H412from source