SHEET /m/alpha-pinene · PubChem CID 6654 · CAS 80-56-8 · REV 2026.07
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α-Pinene from source
C10H16 · 136.23 g/mol
alpha-Pinene · Acintene A · pin-2(3)-ene · alfa-Pinene
group of stereoisomers
CategoryScent & aroma
Fig. 1 · 2D structure RDKit
CC1=CCC2CC1C2(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 α-Pinene is 3,700 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
259.0 g
a median lethal dose scaled to 154 lb (259,000 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
3,700 mg/kg · very low toxicity · LD50 rat oral from source
The dose lens above scales this to a body weight.
DangerFlammableCorrosiveIrritantHealth hazardEnvironmentalH226, H302, H304, H315, H317, H318, H371, H372, H373, H400, H410from source