p-Mentha-1,4-dien-7-al is a cumin-associated monoterpene aldehyde that appears repeatedly in cumin essential-oil chemistry papers and in the AromaForge cumin record. Its evidence base is modest: identity and occurrence are well supported, while isolated bioactivity and safety literature for the purified constituent remains thin and often indirect. For AromaForge, the most defensible framing is a cumin chemotype marker with limited early-stage activity signals and clear evidence gaps.
Chemical identity and composition
PubChem identifies p-mentha-1,4-dien-7-al as C10H14O with InChIKey NIBUJHLMVJZODW-UHFFFAOYSA-N and IUPAC name 4-propan-2-ylcyclohexa-1,4-diene-1-carbaldehyde. The Good Scents Company lists CAS 22580-90-1 and the same core name under the synonym gamma-terpinen-7-al. In the local archive it appears in cumin seed essential oil at roughly 1.5-16%, with a current typical value around 9.16%.
Aroma and practical use
- Use the recorded aldehydic, spicy, cumin-like, terpenic 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 2012 molecular-distillation study specifically targeted enrichment of cuminaldehyde and p-mentha-1,4-dien-7-al from cumin oil, indicating that this aldehyde is a sufficiently important compositional target to optimize during fractionation.
A 2012 molecular-distillation study specifically targeted enrichment of cuminaldehyde and p-mentha-1,4-dien-7-al from cumin oil, indicating that this aldehyde is a sufficiently important compositional target to optimize during fractionation.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
A 2022 Argentine cumin-oil study measured p-mentha-1,4-dien-7-al at 9.88 +/- 2.95% and discussed aldehyde-rich cumin oils, including this constituent, as likely contributors to fumigant insecticidal activity observed for the oil.
A 2022 Argentine cumin-oil study measured p-mentha-1,4-dien-7-al at 9.88 +/- 2.95% and discussed aldehyde-rich cumin oils, including this constituent, as likely contributors to fumigant insecticidal activity observed for the oil.
This experimental finding does not establish benefit, dose or safety in people using this blend.
A conference abstract reported antibacterial testing of isolated p-mentha-1,4-dien-7-al and described activity against both Gram-positive and Gram-negative bacteria, but the accessible evidence is only a proceedings-level abstract and should be treated cautiously.
A conference abstract reported antibacterial testing of isolated p-mentha-1,4-dien-7-al and described activity against both Gram-positive and Gram-negative bacteria, but the accessible evidence is only a proceedings-level abstract and should be treated cautiously.
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 attachedThe Good Scents Company entry for gamma-terpinen-7-al reports no determined oral, dermal, or inhalation toxicity data and no established fragrance or flavor use recommendation on that page, which is more a data-gap signal than a clearance signal.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
No direct public citation is attached to this entry.
No robust constituent-specific human dermal tolerance, sensitization, or phototoxicity study was verified in this pass.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
No direct public citation is attached to this entry.
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
possible contributor to cumin oil antibacterial and insecticidal activity
Cumin-oil papers repeatedly group p-mentha-1,4-dien-7-al with other carbonyl constituents such as cuminaldehyde when discussing likely contributors to the oil's antimicrobial or insecticidal behavior, but this remains mixture-level inference rather than a verified mechanism for the purified constituent.
This experimental finding does not establish benefit, dose or safety in people using this blend.
No direct public citation is attached to this entry.
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)
- Direct constituent-specific literature for purified p-mentha-1,4-dien-7-al is still thin compared with cumin-oil mixture literature.
- Accessible safety data are limited and often framed as not determined rather than as a robust toxicology package.
- No constituent-specific human clinical, dermal-limit, or inhalation study was verified in this pass.
- 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.