Major component · the claim says “contained high percentages of”
Essential oils from the needles and green cones of four pine species contained high percentages of α-pinene, (E)-caryophyllene, limonene, germacrene D, myrcene and δ-3-carene.
Scope: Needle and cone oils of four Pinus species from one region, reported together; composition, not odour potency. CLM-PINENEEDLE-001 ↗
GC-MS analysis of the essential oil of one peppermint cultivar identified menthol and menthone as its main components, followed by limonene, menthyl acetate and β-caryophyllene.
Scope: One peppermint cultivar ('Kristinka'); composition only, and it does not cover spearmint or other mint species. CLM-MINT-001 ↗
Major component · the claim says “making up a further 10–40%”
A review reports eugenol as the major compound of clove essential oil, at least half of it, with eugenyl acetate, β-caryophyllene and α-humulene making up a further 10–40%.
Scope: Clove essential oil and extracts; composition, not odour potency, and amounts vary with the extraction method. CLM-CLOVE-001 ↗
Essential oils of black pepper fruits from Madagascar and Brazil were dominated by α-pinene, sabinene, β-pinene, δ-3-carene, limonene and β-caryophyllene, and their relative amounts grouped by origin.
Scope: Composition of hydrodistilled essential oils, not the odour potency of each compound; origin and processing change the profile. CLM-PEPPER-001 ↗
Checked against PubChem and Wikidata on 2026-10-02 (identifier check run 37063263965). Every name SmellBook uses must resolve to the same single PubChem compound.
WHAT THIS MEANS
SmellBook lists a molecule only where a VERIFIED claim names it, in the role and scope that claim states. A molecule reported in a smell's evidence is not the whole smell: most smells come from many compounds together, and the studies measured particular samples, such as one cultivar, an essential oil or a cooked product.