Ethyl hexanoate, also called ethyl caproate, is a fruity aliphatic ester widely used in flavor and fragrance work and repeatedly associated with apple, pineapple, and brandy-like notes. The live evidence base is strongest for identity, sensory use, food-flavor safety review, and ecological or sensory studies rather than for human wellness outcomes. Archive-safe positioning is that ethyl hexanoate is a fermentation-linked aroma ester with limited direct pharmacology evidence and no basis for medical claims.
Aroma and practical use
- Use the recorded fruity, pineapple-like, apple-peel-like, brandy-like descriptors to explore a blend's scent character; perceived strength also depends on the other ingredients.
- Review the flagged use concerns across every contributing oil and the selected dilution.
- Read the route, preparation and experimental context before using a study finding to choose an oil.
Reported benefits and effects
Findings retain their study context. An animal or laboratory result describes that experiment.
A 2020 Neuroscience Letters study reported that intragastric administration of dilute ethyl hexanoate increased sympathetic nerve activity innervating brown and white adipose tissues and was associated with thermogenesis and lipolysis-related measures in anesthetized rats.
A 2020 Neuroscience Letters study reported that intragastric administration of dilute ethyl hexanoate increased sympathetic nerve activity innervating brown and white adipose tissues and was associated with thermogenesis and lipolysis-related measures in anesthetized rats.
This experimental finding does not establish benefit, dose or safety in people using this blend.
A study on Anastrepha striata identified ethyl hexanoate as one of three female-antennal-active male volatiles and found that synthetic blends containing it attracted females in two-choice trap tests.
A study on Anastrepha striata identified ethyl hexanoate as one of three female-antennal-active male volatiles and found that synthetic blends containing it attracted females in two-choice trap tests.
This experimental finding does not establish benefit, dose or safety in people using this blend.
A four-component attractant study for the Mexican fruit fly reported the most attractive blend ratio as 1,8-cineole, ethyl hexanoate, hexanol, and ethyl octanoate at 10:1:1:100.
A four-component attractant study for the Mexican fruit fly reported the most attractive blend ratio as 1,8-cineole, ethyl hexanoate, hexanol, and ethyl octanoate at 10:1:1:100.
This experimental finding does not establish benefit, dose or safety in people using this blend.
Use concerns and concentration limits
Sensitization concernFlagged
Flagged in the constituent reference; assess the source, route and finished-product concentration.
Phototoxicity concernNot flagged
Not flagged in the current model. This is not proof of absence or unrestricted safety.
Oxidation concernNot flagged
Not flagged in the current model. This is not proof of absence or unrestricted safety.
Penetration enhancementNot flagged
Not flagged in the current model. This is not proof of absence or unrestricted safety.
A recorded constituent reference, not a recommended oil dilution. Product category, source applicability and all contributing oils must be checked before use.
unverified reference · No source provenance attachedJECFA states there is no safety concern at current levels of intake when ethyl hexanoate is used as a flavouring agent.
The source assessment applies to its specified exposure and preparation; this entry is not an unrestricted-use clearance.
FDA's Substances Added to Food inventory lists ethyl hexanoate / ethyl caproate as a flavoring agent or adjuvant under 21 CFR 172.515.
The source assessment applies to its specified exposure and preparation; this entry is not an unrestricted-use clearance.
A 2021 RIFM safety assessment reported that available data did not indicate genotoxic concern and supported use under the assessed fragrance exposure conditions; the assessment also reported no expected phototoxic or photoallergenic concern.
The source assessment applies to its specified exposure and preparation; this entry is not an unrestricted-use clearance.
Constituents it may interact with
No constituent-pair interaction is recorded for this identity. The report does not assume either amplification or incompatibility.
How the effects were investigated
general carboxylesterase-mediated ester hydrolysis
As a simple aliphatic ester, ethyl hexanoate is plausibly hydrolyzed to ethanol and hexanoic acid by mammalian carboxylesterases; this is a chemistry-based inference rather than a constituent-specific metabolism study.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
chemosensory signaling after exposure
A rat study reported increased sympathetic nerve activity to brown and white adipose tissue after intragastric ethyl hexanoate exposure, suggesting a sensory or gut-brain signaling effect under the experimental conditions tested.
This experimental finding does not establish benefit, dose or safety in people using this blend.
What this report cannot establish
- A reported constituent percentage does not establish an effective human therapeutic dose or the amount absorbed into the body.
- The presence of a constituent does not guarantee a clinical benefit, rash treatment or sleep improvement from a custom blend.
- An unflagged concern or missing use limit does not establish safety for ingestion, inhalation, skin exposure or a particular person.
- A candidate constituent interaction does not establish that two oils amplify one another at the selected proportions.
- Constituent descriptors alone do not establish a precise top, heart or base lifetime in a finished blend.
Known data gaps (5)
- No human clinical outcome studies focused on isolated ethyl hexanoate were verified in this pass.
- The sympathetic-nerve finding is from an animal model and should not be translated into therapeutic claims.
- A current public IFRA use-limit table specific to this constituent was not verified here.
- The numeric dermal reference lacks source provenance; a verified flag alone is insufficient.
- Some findings do not record an explicit exposure route; consult the linked study before applying them to a use.