Ethyl Isobutyrate
Ethyl Isobutyrate
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Powerful fruity brightness with lasting impact.
The definitive pineapple-strawberry building block.
Instant ethereal lift for any composition.
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Aroma Chemicals | Green Collection
CAS: 97-62-1 Classification: Top Note[i]This material opens with immediate ethereal sweetness that floods your senses with bright, diffusive fruitiness. Its extraordinary power means even trace amounts create significant olfactory impact—the odour threshold reaches as low as 0.01 parts per billion. The rum-like alcoholic facets add sophisticated complexity beyond simple fruit candy sweetness.
You deploy this workhorse for creating vibrant fruit accords where it serves as a cornerstone for pineapple and strawberry compositions. Blend with ethyl maltol for the famous pineapple synergy through configural perception—your brain processes their combination as fresh pineapple rather than separate strawberry-plus-caramel notes. Use dilutions of 10% or less to maintain precise control over its overwhelming strength.
Remember its four-hour tenacity positions it perfectly as a fleeting top note that creates brilliant openings before gracefully fading. The low flash point demands careful storage away from ignition sources. This material enjoys complete freedom from IFRA restrictions, giving you maximum creative latitude across all product categories from fine fragrance to functional applications.
Disclaimer: where applicable, references to third-party perfumes, brand names and trade marks are solely for identification and comparison. This is an independently developed Fraterworks formulation, not the original, and is not affiliated with or endorsed by any brand or trade mark owner.
- IFRA 51
- Details coming soon…
- Odour Family
- Fruity
- Appearance
- Colourless liquid
- Longevity
- Lasts 4 hours on a smelling strip.
- INCI Name
- ETHYL ISOBUTYRATE
- IUPAC Name
- ethyl 2-methylpropanoate
Ethyl isobutyrate delivers an intensely sweet, ethereal burst of fruity brightness with pronounced pineapple-strawberry character, displaying rum-like alcoholic facets and subtle buttery-creamy undertones that create immediate lift and diffusive sparkle.
Essential top note modifier providing lift, brightness and juiciness to fruit accords, floral bouquets and functional fragrances.
General Information
General Information
Like most suppliers and makers of quality raw materials for fragrances, we do not filter many of our products. This ensures that no odiferous matter is lost prior to use but can result in the appearance of small particles or slight clouding.
All alcoholic fragrances should be macerated for up to a month and then chilled in a moderate freezer overnight before being filtered fine. This will remove all cloudiness or detritus and is the industry norm.
IFRA Standards
IFRA Standards
Permitted amounts in finished product:
IFRA 51: Coming Soon
IFRA 49: Coming Soon
These are derived from calculated concentrations which do not replace chromatographic quantification on individual lots. Disclaimer...
For Trade Use Only
For Trade Use Only
Our products are intended as building blocks in the perfume creation process; they are not to be applied to the skin undiluted.
These raw materials are for use by the perfumery trade only.
UN 2385
Usage in Perfumery
Ethyl Isobutyrate appears in 1% of the perfumes we have analysed, at a median of tr. of the concentrate.
- Odour
- Fruity, sweet, ethereal, alcoholic, rummy
- Family
- Fruity
- Common dilutions
- 10%
- Substantivity
- 4 hours on a smelling strip
GCMS analysesEau De Protection (0.027%), Bois Noir (0.011%), Creed Original santal (tr.), Juliette Has A Gun Moon Dance (tr.), 1740 Marquis de Sade (tr.)
Creative Formulasall at < 0.1%: Angels' Share, Accento, Aura, Black Opium Over Red, Classique, English Pear & Freesia, Miel de Bois, Narcotic Delight, P. Red Extreme, Single Malt, Torino24, Vanille Fatale 2017, Vetiver Fauve
Ambarella fruit (0.8%), Carob bean extract (0.233%), Myrtle leaf (0.07%), Oregano, mexican (0.01%), Roman chamomile (0.01%)
Average content per species across published analyses, indexed by Essential Oil University.
Also known by 19 other names
butyric acid ethyl ester; butyric acid, ethyl ester; ethyl 2-methyl propanoate; ethyl 2-methyl propionate; ethyl 2,2-dimethyl acetate; ethyl isobutanoate; ethyl isobutyrate 99%, (naturals); ethyl isobutyrate FCC; ethyl isobutyrate FCC natural; ethyl isobutyrate natural; ethyl isobutyrate, natural; ethyl methylpropanoate; iso; methyl propanoic acid ethyl ester; methyl propionic acid ethyl ester; nat.; propanoic acid, 2-methyl ethyl ester; propanoic acid, 2-methyl-, ethyl ester; propionic acid, 2-methyl-, ethyl ester
Statistics drawn from published GCMS analyses, commercial and demonstration formulas. References to third-party perfumes, brand names and trade marks are solely for identification and comparison. Formulas not made, supplied, licensed, authorised, sponsored or endorsed by the manufacturer or trade mark owner.
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Our materials integrate smoothly into any formulation, from classics to modern creations.
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Each ingredient delivers rich olfactory nuances, longevity, and structural balance.
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We trace every material to its source and maintain full consistency in every batch.
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Professional perfumers and niche brands trust us for precision, reliability, and artistry.
We Meet All Industry Standards
Our materials comply with IFRA and EU 1223/2009 regulations for safety and quality.
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High-End Packaging
Amber glass bottles, sealed aluminum containers, and protective barriers.
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General Disclaimer
(a) Vegan labelling: Where the word “vegan” is used in relation to our products, that indicates that we have not added any animal products to products marked vegan. We do not verify whether any third-party supplier has used animal additives prior to supplying a product to us. We provide products marked vegan “as is” and make no representation as to the accuracy, completeness, or reliability of that claim.
(b) Natural labelling: Where the word “natural” is used in relation to our products, that indicates that we have not added any synthetic additives to products marked natural. We do not verify whether any third-party supplier has used synthetic additives prior to supplying a product to us. We provide products marked natural “as is” and make no representation as to the accuracy, completeness, or reliability of that claim.
(c) Documentation: We provide the information contained in each document you obtain from us (including but not limited to SDS, IFRA certificate, COA, TDS, EU Allergens, and any other regulatory document) “as is” and make no representation as to its accuracy, completeness, or reliability. We provide no warranties or guarantees in relation to a document you obtain from us. You purchase and use a document or documents at your own risk. Any implied conditions or warranties are excluded and, to the extent that they cannot be excluded, any liability we have to you or any other person or entity in respect of a document you obtain from us is limited to NZD0.01 (one cent). You indemnify us against any loss we suffer or incur as a direct or indirect result of your use of a document you obtain from us.
(d) Demonstration formulas: Demonstration formulas are provided as a guide only. We provide no warranties or guarantees in relation to the formula. You access and use the formula at your own risk. These are independent Fraterworks reconstructions based on our own GCMS and olfactory analysis. They are not the manufacturers' original formulas and have not been supplied, authorised, licensed, sponsored or endorsed by the manufacturers. Brand and perfume names are used solely to identify the subject of the analysis and comparison. Any implied conditions or warranties are excluded and, to the extent that they cannot be excluded, any liability we have to you or any other person or entity in respect of the formula is limited to NZD0.01 (one cent). You indemnify us against any loss we suffer or incur as a direct or indirect result of your use of a formula.
Note: Wherever you are a professional perfumer or a hobbyist, we have what you need — from essential oils and absolutes, to bases, perfume chemicals (synthetics), bottles and more. We also offer compounding (contract blend), fragrance formulation, and an artisan lab visit for a guided smelling experience. Please note that we are not selling perfumes and that our materials are for use for perfume creation. We ship all around the world and have customer service that is second to none. We also stock educational kits and sample kits.
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Regulations
DisclaimerAll of our products are compliant with EU 1223/2009 and the NZCPGS. None of our bases contain prohibited materials and regulatory compliance is possible depending on usage.
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IFRA Conformity
All of our bases can be used in products requiring conformity with the latest IFRA standards. Fraterworks is an official member of IFRA and the FFAANZ.
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Nitro Musks
Some of our products may contain small amounts of EU and IFRA compliant musk ketone. We never use musk xylene, musk ambrette or any other prohibited materials.
Ethyl Isobutyrate