Eucalyptol

from source

C10H18O · 154.25 g/mol

Cajeputol · cineole · Eucapur · p-Cineole

What is Eucalyptol?

The cool camphor rush of eucalyptus oil, in mouthwash, chest rubs, and cough drops. It is the main compound in eucalyptus and a large part of rosemary. from source

CategoryScent & aroma

Chemical familyEthers

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESCC1(C2CCC(O1)(CC2)C)C

The dose makes the poison inferred

A reported rat oral LD50 for Eucalyptol is 2,480 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:

your weight154 lb

173.6 g

a median lethal dose scaled to 154 lb (173,600 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

2,480 mg/kg · very low toxicity · LD50 rat oral from source

The dose lens above scales this to a body weight.

1 more reported value

2,000 mg/kgLD50 · dermal · rat

WarningFlammableIrritantH226, H317from source

Sources & methodology

PubChem CID: 2758
Wikidata: Q161572
Structure: PubChem → RDKit
LD50: PubChem
Data refreshed: October 19, 2026

How MoleculeFinder sources and labels its data