Isoamyl Acetate
CAS: 123-92-2
TopFruity
Identifiers
Manufacturer
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CAS number
123-92-2
CAS (all sources)
123-92-2
CAS (Perfumiarz)
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CAS (PerfumersWorld)
123-92-2
CAS (FraterWork)
123-92-2
CAS (EU Hekserij)
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CAS (TSCA Hekserij)
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INCI name (FraterWork)
ISOAMYL ACETATE
IUPAC name (FraterWork)
3-methylbutyl acetate
INCI (Hekserij)
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EC number (Hekserij)
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FEMA (Hekserij)
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UN number
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Synonyms (PerfumersWorld)
Iso Amyl Acetate (nom meaw) : Methyl Butyl Acetate, Beta- : IsoamylAcetate : Amyl Acetate, common : Methyl Butyl Acetate, 3- : Beta-methyl ButylAcetate : Isoamyl ethanoate : Isoamyl acetate : 3-Methylbutyl acetate
Synonyms (FraterWork)
Iso Amyl Acetate
Scent profile
Note type (FraterWork)
Top Note
Odour family (FraterWork)
Fruity
Odour profile (FraterWork)
Isoamyl Acetate delivers an intensely powerful and immediately
recognisable sweet fruity character dominated by authentic banana and pear
notes, with a heady estery quality that can become solventy at high
concentrations.
Longevity (FraterWork)
Lasts < 4 hours on a smelling strip.
Odor life hours (PerfumersWorld)
0.1
Relative odor impact (PerfumersWorld)
800
Appearance (FraterWork)
Colourless liquid
Descriptions
Description
Isoamyl Acetate is sweet fruity banana solvent pear-drops estery chokingtop-note-modifier melon mulberry pear lemon pineapple strawberry grapecream-soda vanilla rum butter milk cherry apple.
Odour (PerfumersWorld)
sweet fruity banana solvent Pear-drops estery fruity sweet choking
Description (PerfumersWorld)
Isoamyl Acetate is sweet fruity banana solvent pear-drops estery chokingtop-note-modifier melon mulberry pear lemon pineapple strawberry grapecream-soda vanilla rum butter milk cherry apple.
Comment (FraterWork)
Isoamyl Acetate opens with overwhelming power—pure, sweet banana that can
momentarily dominate everything in its path. This isn't subtle fruitiness; it's
the concentrated essence of overripe banana peels mixed with British pear-drop
sweets. At high concentrations, a sharp solventy character emerges, reminiscent
of nail varnish remover, but proper dilution reveals its true nature: intensely
sweet, heady fruitiness that captures the exact moment when tropical fruits
reach peak ripeness. The material's remarkable potency means even traces can
transform a composition.
Utilise Isoamyl Acetate with extreme restraint—typically at 0.1-2% in fragrance
compositions to avoid artificial, candy-like effects. Its exceptional volatility
makes it a pure top note with limited tenacity (around 4 hours), demanding
careful support from longer-lasting materials. Use minute amounts to add
authentic banana character to tropical accords or to create playful pear
effects. In jasmine compositions, traces provide fruity lift without
overwhelming the floral heart. Blend with other fruity esters like ethyl
butyrate [https://fraterworks.com/products/ethyl-butyrate] for complex fruit
salads, or combine with vanillin [https://fraterworks.com/products/vanillin] for
creamy banana dessert effects.
ISO OR NOT?
The critical difference between Isoamyl Acetate and Amyl Acetate lies in their
molecular structure and resulting odour profiles. Isoamyl Acetate (3-methylbutyl
acetate) features a branched carbon chain that creates its distinctive
banana-pear character with remarkable intensity and sweetness. Amyl Acetate
(n-pentyl acetate), with its straight carbon chain, presents a milder, more
general fruity-estery note often described as apple-like or simply "fruity"
without the specific banana association.
The branched structure of isoamyl makes it more volatile and impactful—nature's
alarm pheromone for honeybees—while the linear amyl version offers better
blending properties and less aggressive character. Isoamyl dominates with
unmistakable banana; amyl whispers general fruitiness. Choose isoamyl for bold
tropical statements and nostalgic candy effects; select amyl for subtle fruit
enhancement and professional polish.
aromachem Best Seller no_reg
Notes
Isoamyl Acetate opens with overwhelming power—pure, sweet banana that can
momentarily dominate everything in its path. This isn't subtle fruitiness; it's
the concentrated essence of overripe banana peels mixed with British pear-drop
sweets. At high concentrations, a sharp solventy character emerges, reminiscent
of nail varnish remover, but proper dilution reveals its true nature: intensely
sweet, heady fruitiness that captures the exact moment when tropical fruits
reach peak ripeness. The material's remarkable potency means even traces can
transform a composition.
Utilise Isoamyl Acetate with extreme restraint—typically at 0.1-2% in fragrance
compositions to avoid artificial, candy-like effects. Its exceptional volatility
makes it a pure top note with limited tenacity (around 4 hours), demanding
careful support from longer-lasting materials. Use minute amounts to add
authentic banana character to tropical accords or to create playful pear
effects. In jasmine compositions, traces provide fruity lift without
overwhelming the floral heart. Blend with other fruity esters like ethyl
butyrate [https://fraterworks.com/products/ethyl-butyrate] for complex fruit
salads, or combine with vanillin [https://fraterworks.com/products/vanillin] for
creamy banana dessert effects.
ISO OR NOT?
The critical difference between Isoamyl Acetate and Amyl Acetate lies in their
molecular structure and resulting odour profiles. Isoamyl Acetate (3-methylbutyl
acetate) features a branched carbon chain that creates its distinctive
banana-pear character with remarkable intensity and sweetness. Amyl Acetate
(n-pentyl acetate), with its straight carbon chain, presents a milder, more
general fruity-estery note often described as apple-like or simply "fruity"
without the specific banana association.
The branched structure of isoamyl makes it more volatile and impactful—nature's
alarm pheromone for honeybees—while the linear amyl version offers better
blending properties and less aggressive character. Isoamyl dominates with
unmistakable banana; amyl whispers general fruitiness. Choose isoamyl for bold
tropical statements and nostalgic candy effects; select amyl for subtle fruit
enhancement and professional polish.
aromachem Best Seller no_reg
Usage
Perfume uses (PerfumersWorld)
Top-note-modifier Melon Mulberry Pear Lemon PineapplePear Banana Strawberry Grape Cream-soda Vanilla Rum Butter Milk Cherry AppleBananaBlends-well-with=> +Ethyl Butyrate +Isoamyl Butyrate * Relative Odor Impact 800 * Odor Life on a smelling strip 0.1 hrs
Average use (FraterWork)
0.5% in a perfume compound
Uses (FraterWork)
Banana and pear accords, tropical fruit themes, fruity top notes, jasmine
enhancement, gourmand compositions.
IFRA 51 (FraterWork)
No restriction for category 4
Links
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