SHEET /m/menthol · PubChem CID 16666 · CAS 2216-51-5 · REV 2026.07
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Menthol from source
C10H20O · 156.26 g/mol
l-Menthol · (-)-menthol · Levomenthol · l-(-)-Menthol
organic compound used as flavouring and analgesic
CategoryFood & flavor
Chemical familyAlcohols
Fig. 1 · 2D structure RDKit
C[C@@H]1CC[C@H]([C@@H](C1)O)C(C)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 Menthol is 3,300 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
231.0 g
a median lethal dose scaled to 154 lb (231,000 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
3,300 mg/kg · very low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
4 more reported values
- 3,400 mg/kgLD50 · oral · mouse
- 10,001 mg/kgLD50 · oral · rat
- 700 mg/kgLD50 · other · rat
- 6,600 mg/kgLD50 · other · mouse
WarningIrritantH315, H319, H320, H336, H402from source
Keep roaming
Where Menthol leads
Relatedcomputed