Ethyl palmitate

CAS:
628-97-7
Family:
fatty acid ethyl ester
Also:
Ethyl hexadecanoate, Ethyl hexadecanoate (ethyl palmitate), Ethyl palmitate, ethyl hexadecanoate

Found heavily in (3 oils total)

Recorded sensory reference values
  • Affect valence: 0.25
  • Affect arousal: 0.1

Reference values depend on measurement conditions and do not describe an effective dose or the perception of a custom blend.

Ethyl palmitate is a long-chain fatty-acid ethyl ester used in flavor and fragrance work and also reported as a minor natural volatile in some aromatic materials. The strongest live evidence supports its identity, food-flavoring status, fragrance-safety review, and insect semiochemical roles rather than human therapeutic use. In AromaForge it is best framed as a waxy ester marker with regulatory and preclinical context, not as a clinically established active.

Aroma and practical use

waxyfattycreamysoft fruity
  • Use the recorded waxy, fatty, creamy, soft fruity descriptors to explore a blend's scent character; perceived strength also depends on the other ingredients.
  • 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 2023 Bactrocera dorsalis paper identified Ethyl palmitate among four female-specific semiochemicals that stimulated male courtship behavior.

A 2023 Bactrocera dorsalis paper identified Ethyl palmitate among four female-specific semiochemicals that stimulated male courtship behavior.

animalRoute not recordedInsect behavioral pheromone study.

This experimental finding does not establish benefit, dose or safety in people using this blend.

A 2024 follow-up linked perception of female-derived pheromones including Ethyl palmitate to OBP83b and OBP49a in Bactrocera dorsalis.

A 2024 follow-up linked perception of female-derived pheromones including Ethyl palmitate to OBP83b and OBP49a in Bactrocera dorsalis.

animalRoute not recordedInsect olfactory mechanism study.

This experimental finding does not establish benefit, dose or safety in people using this blend.

A Varroa-brood semiochemical paper described Ethyl palmitate as inactive compared with methyl palmitate and methyl linolenate in the tested kairomone context.

A Varroa-brood semiochemical paper described Ethyl palmitate as inactive compared with methyl palmitate and methyl linolenate in the tested kairomone context.

animalRoute not recordedArthropod host-cue study showing mixed activity.

This experimental finding does not establish benefit, dose or safety in people using this blend.

A 2020 electrotarsogram study nevertheless reported detectable Varroa responses to Ethyl palmitate at low stimulus loading, underscoring that the animal evidence is context-dependent rather than uniformly positive.

A 2020 electrotarsogram study nevertheless reported detectable Varroa responses to Ethyl palmitate at low stimulus loading, underscoring that the animal evidence is context-dependent rather than uniformly positive.

animalRoute not recordedArthropod sensory-response study.

This experimental finding does not establish benefit, dose or safety in people using this blend.

Use concerns and concentration limits

Sensitization concernNot flagged

Not flagged in the current model. This is not proof of absence or unrestricted safety.

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.

No numeric constituent-specific use limit is available here. Missing is not an unrestricted-use clearance.

A 2025 RIFM fragrance ingredient safety assessment evaluated Ethyl palmitate across genotoxicity, repeated-dose toxicity, reproductive toxicity, local respiratory toxicity, photoirritation, and skin-sensitization endpoints.
safety reviewRoute not recorded

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 palmitate as a flavoring agent or adjuvant, and FAO/JECFA keeps a full flavouring specification on ethyl hexadecanoate.
regulatory reviewRoute not recorded

The source assessment applies to its specified exposure and preparation; this entry is not an unrestricted-use clearance.

This pass did not verify a public constituent-specific dermal maximum or human clinical safety trial for isolated Ethyl palmitate, so consumer-facing safety language should stay modest.
gap noteRoute not recorded

This reference does not establish a therapeutic result or a safe use level for a custom oil blend.

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

probable esterase hydrolysis

As a simple fatty acid ethyl ester, Ethyl palmitate is generally expected to undergo hydrolysis to ethanol and palmitic acid before normal downstream metabolism, but this pass did not verify a constituent-specific human metabolism paper.

inferenceRoute not recorded

This reference does not establish a therapeutic result or a safe use level for a custom oil blend.

odorant-binding and kairomone signaling in arthropods

Recent insect studies support Ethyl palmitate as part of behaviorally active odor blends, including female-derived Bactrocera pheromone signaling and Varroa responses to brood-associated esters.

animalRoute not recorded

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 palmitate were verified in this pass.
  • The strongest direct activity evidence is insect semiochemical work, not aromatherapy-style constituent pharmacology.
  • No IFRA Standard exists for ethyl palmitate despite the 2025 RIFM safety assessment (which covered genotoxicity, repeated-dose, reproductive, respiratory, photoirritation, and sensitization endpoints), so no category-specific dermal maximum could be sourced; publicly accessible detail from that RIFM assessment is limited at the abstract level.
  • No constituent-specific numeric dermal reference is available here.
  • Some findings do not record an explicit exposure route; consult the linked study before applying them to a use.
All public references (10)