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Banana

Q: Is Banana natural or synthetic?

. Extraction: Synthetic. Isoamyl acetate is produced by Fischer esterification: isoamyl alcohol (3-methylbutan-1-ol) reacts with glacial acetic acid under sulfuric acid catalysis. The isoamyl alcohol feedstock comes from two sources: fusel oil, a byproduct of grain or sugar fermentation containing mixed higher alcohols, or petrochemical synthesis via hydroformylation of isobutylene. The reaction is an equilibrium process; excess acetic acid and continuous water removal drive it to completion. Product is purified by fractional distillation. The process, first described by Emil Fischer and Arthur Speier in 1895, remains essentially unchanged. Purity: typically 95–99%..

Q: What perfumes use Banana?

Top-note modifier and fruity accent. Banana in perfumery means isoamyl acetate (CAS 123-92-2), occasionally supported by amyl butyrate (riper, more tropical) or ethyl butyrate (pineapple-adjacent). The molecule is a short-chain aliphatic ester — volatile, diffusive, and fleeting. It functions as a fruity flash in gourmand openings and tropical-fruity accords, but lacks the molecular weight for any fixative role. Substantivity is minimal: on blotter, isoamyl acetate evaporates within 2–4 hours. At trace concentrations (under 0.05% of a formula), isoamyl acetate lifts floral-fruity accords without announcing itself as banana. Above 0.1%, the banana character becomes unmistakable and risks reading as synthetic or confectionery. The molecule blends with other fruit esters — hexyl acetate (pear-apple), ethyl butyrate (pineapple), cis-3-hexenyl acetate (green-fruity) — and benefits from a vanillic or lactonic base to soften its solvent edge. No Première Peau fragrance uses a banana note. The molecule sits firmly in the gourmand-fruity territory, far from the brand's aromatic vocabulary.

FRUITS, VEGETABLES AND NUTS / fruity · creamy · sweet

Banana

Category	FRUITS, VEGETABLES AND NUTS
Subcategory	fruity · creamy · sweet
Origin
Volatility	Top Note
Botanical	Musa
Appearance	colorless to pale yellow clear liquid
Odor Strength	High
Producing Countries	Produced industrially worldwide (chemical synthesis)
Pyramid	Top

Overripe sweetness with a solvent-sharp ester edge. The banana note in perfumery is isoamyl acetate — the same molecule honeybees release as alarm pheromone when they sting. At low dose it reads as creamy-fruity; at higher concentrations it turns into nail polish remover.

Scent
The Full Story
Fun Fact
Extraction & Chemistry
In Perfumery

Scent

Immediate impact: sweet, ester-heavy, unmistakably banana — but with a sharp solvent bite underneath, like nail polish remover sweetened with fruit syrup. Drier and more chemical than real banana flesh. At trace levels, the solvent edge recedes and what remains is a creamy, almost lactonic fruitiness — closer to ripe pear than to banana. Compared to coconut (which is lactonic and oily), banana is thinner and more volatile. Compared to pineapple (ethyl butyrate-driven), banana is sweeter and less acidic. The molecule evaporates quickly; on blotter, the banana character is gone within 2–3 hours, leaving only a faint, waxy-sweet residue.

Evolution over time

Immediately

Sharp, ester-solvent banana. Isoamyl acetate at full strength — sweet but aggressive, with a nail-polish-remover bite beneath the fruit. Intense diffusion.

After a few hours

The solvent edge burns off. What remains is a faint, creamy-sweet fruitiness, more pear than banana. Thin and transparent — the molecule lacks the mass to persist.

After a few days

Virtually absent. A barely perceptible waxy-sweet trace on fabric if applied heavily. Isoamyl acetate's low molecular weight (130 g/mol) and high vapour pressure ensure near-complete evaporation.

The Full Story

Banana (Musa cultivars, Musaceae) is the fruit of the herbaceous monocot whose volatile profile is dominated by a single signature compound: isoamyl acetate (3-methylbutyl acetate, CAS 123-92-2) [A] — the canonical 'banana ester' that gives the ripe fruit its overripe-sweet, solvent-sharp character. Other contributors include isoamyl butyrate, isoamyl propionate, and a small fraction of eugenol and elemicin in the deeper register.

In perfumery

Banana has no commercial fragrance extract. The note is a reconstruction built around isoamyl acetate, often at 60–80% of the accord, balanced with γ-decalactone for fatty body and a trace of eugenol or elemicin for the slightly spicy banana-skin angle. Banana sits naturally with tropical-fruit accords, gourmand-coconut, and the more avant-garde fruity-floral compositions. Comme des Garçons 2 Man (2004) is a famous example of overt banana use in niche perfumery.

Sources & Notes

[A] PubChem CID 31276 — isoamyl acetate, CAS 123-92-2, C₇H₁₄O₂. The canonical 'banana ester'. pubchem.ncbi.nlm.nih.gov/compound/31276.

Did You Know?

Did you know?

Isoamyl acetate — the molecule responsible for banana smell — doubles as the honeybee alarm pheromone. When a bee stings, it releases isoamyl acetate from the sting shaft, signalling other bees to attack. The identification was published in Nature in 1962 (Boch, Shearer & Stone). This is why beekeepers avoid wearing banana-scented products near hives.

Extraction & Chemistry

Extraction method: Synthetic. Isoamyl acetate is produced by Fischer esterification: isoamyl alcohol (3-methylbutan-1-ol) reacts with glacial acetic acid under sulfuric acid catalysis. The isoamyl alcohol feedstock comes from two sources: fusel oil, a byproduct of grain or sugar fermentation containing mixed higher alcohols, or petrochemical synthesis via hydroformylation of isobutylene. The reaction is an equilibrium process; excess acetic acid and continuous water removal drive it to completion. Product is purified by fractional distillation. The process, first described by Emil Fischer and Arthur Speier in 1895, remains essentially unchanged. Purity: typically 95–99%.

Molecular Formula	C₇H₁₄O₂ (isoamyl acetate, MW 130.18 g/mol)
CAS Number	123-92-2 (isoamyl acetate, principal banana odorant)
Botanical Name	Musa
IFRA Status	No known restrictions
Synonyms	Banana oil · Pear oil · Isoamyl acetate · Isopentyl acetate · 3-Methylbutyl acetate
Physical Properties
Odor Strength	High
Lasting Power	2-3 hours
Appearance	colorless to pale yellow clear liquid
Flash Point	< 141.00 °F. TCC ( < 60.56 °C. )
Specific Gravity	0.97000 to 1.00000 @ 25.00 °C.
Refractive Index	1.32000 to 1.36000 @ 20.00 °C.

In Perfumery

Top-note modifier and fruity accent. Banana in perfumery means isoamyl acetate (CAS 123-92-2), occasionally supported by amyl butyrate (riper, more tropical) or ethyl butyrate (pineapple-adjacent). The molecule is a short-chain aliphatic ester — volatile, diffusive, and fleeting. It functions as a fruity flash in gourmand openings and tropical-fruity accords, but lacks the molecular weight for any fixative role. Substantivity is minimal: on blotter, isoamyl acetate evaporates within 2–4 hours. At trace concentrations (under 0.05% of a formula), isoamyl acetate lifts floral-fruity accords without announcing itself as banana. Above 0.1%, the banana character becomes unmistakable and risks reading as synthetic or confectionery. The molecule blends with other fruit esters — hexyl acetate (pear-apple), ethyl butyrate (pineapple), cis-3-hexenyl acetate (green-fruity) — and benefits from a vanillic or lactonic base to soften its solvent edge. No Première Peau fragrance uses a banana note. The molecule sits firmly in the gourmand-fruity territory, far from the brand's aromatic vocabulary.