In short
Tamanu oil is the fixed oil pressed from the nuts of Calophyllum inophyllum. It is a heavy green carrier oil with a nutty, walnut-like and faintly resinous smell.
What Tamanu Oil smells like
A perfume glossary (Première Peau) describes tamanu as a heavy green oil smelling of crushed walnuts left on warm earth — nutty, bitter, faintly resinous, with a curry-leaf undertone — whose bitterness recedes on drying towards a warm, resinous, praline-like sweetness; the same glossary notes that it has minimal aromatic use in perfumery. AromaWeb describes a strong, nutty aroma.
- Leading note
- Walnut
- Supporting facets
- Bitter green
- Faint facets
- Resinous, curry leaf
- Character
- Heavy
What makes Tamanu Oil distinctive
A carrier with a smell of its own: nutty, bitter and resinous, drying towards a praline-like sweetness, though a glossary notes its minimal aromatic use.
Where the descriptions disagree: The glossary lists tamanu among base notes but also says it has minimal aromatic use in perfumery; other references describe it as woody rather than nutty.
How Tamanu Oil is used
Used mainly in cosmetics; in perfumery it serves as a carrier with a nutty, earthy character of its own.
Typical role: solvent (dilutes or carries other materials); fixative (slow to evaporate; helps a blend last and holds lighter notes).
How Tamanu Oil differs from similar materials
- Caprylic/Capric Triglyceride
- Caprylic/capric triglyceride is a light, nearly odourless carrier; tamanu oil is a heavy green oil with a nutty, bitter, resinous smell of its own.
Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
A fixed (vegetable) oil, not an essential oil: it is pressed from the seeds and does not evaporate. The resin of the same tree is a different material. PubChem's substance records give CAS 241148-25-4 for Calophyllum inophyllum seed oil (tamanu oil).
Identity and classification
- Type
- Solvent or carrier
- Origin
- Natural
- Odour family
- No odour family
- Note position
- Base note
- Physical form at room temperature
- Viscous liquid
- Also known as
- Takamaka oil, Calophyllum oil
- Botanical source
- Calophyllum inophyllum L.
- CAS number
- 241148-25-4
The CAS number was checked on 26 October 2026 against a PubChem substance record that gives it for this material. A natural material is a mixture, so it has no single formula; its composition varies with origin and processing.
Safety and compliance
This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.
Materials it works with
Used in formulas and accords
Used in 1 published formula
Tamanu Oil is an ingredient in 1 perfume formula in the Formula & Accord Library.
Further reading
Questions about Tamanu Oil
Is Tamanu Oil natural or synthetic?
Tamanu Oil is natural. It is a material used to dilute or carry fragrance materials rather than for its own odour.
What is the CAS number of Tamanu Oil?
241148-25-4, the registry number for the solvent or carrier as a substance rather than a single molecule. It was checked against PubChem on 26 October 2026.
Which published formulas use Tamanu Oil?
Tamanu Oil is used in 1 published formula in the RUŌOD Lab Formula & Accord Library: Banana Bread. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — substance 135335574, checked 26 October 2026.
- Première Peau — Tamanu — published perfumery reference.
- AromaWeb — Tamanu oil — published perfumery reference.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: more than one published description. Classification and the short description: revision 2. Descriptions of odour are judgement, not measurement.






