SHEET /m/thymol · PubChem CID 6989 · CAS 89-83-8 · REV 2026.07
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Thymol from source
C10H14O · 150.22 g/mol
2-Isopropyl-5-methylphenol · 5-Methyl-2-(1-methylethyl)phenol · Thyme camphor · 5-Methyl-2-isopropylphenol
chemical compound
CategoryPlant
Chemical familyAromatics
Fig. 1 · 2D structure RDKit
CC1=CC(=C(C=C1)C(C)C)O
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported mouse oral LD50 for Thymol is 640 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
44.8 g
a median lethal dose scaled to 154 lb (44,800 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
640 mg/kg · low toxicity · LD50 mouse oral from source
The dose lens above scales this to a body weight.
3 more reported values
- 980 mg/kgLD50 · oral · rat
- 100 mg/kgLD50 · iv · mouse
- 2,000 mg/kgLD50 · dermal · rat
DangerCorrosiveIrritantEnvironmentalH302, H314, H317, H318, H401, H411from source
Keep roaming
Where Thymol leads
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