Sabinene hydrate is the common flavor-fragrance name for a monoterpene alcohol often described as 4-thujanol, but the public literature does not always separate its cis and trans stereoisomers cleanly. That makes it useful for AromaForge as both a real aroma constituent and a case where stereochemistry matters. The best accessible evidence supports identity, chemotype relevance, biosynthesis, and a direct antimicrobial paper, while broader safety and efficacy conclusions remain limited by isomer ambiguity and the lack of clinical data.
Chemical identity and composition
PubChem maps generic sabinene hydrate to C10H18O and lists CAS 546-79-2, but synonym records fold generic, cis, and 4-thujanol naming together. In the current archive the generic constituent id appears in Plai at 5.22% typical with a 2.70-5.81% range, while related stereospecific records already exist separately for cis- and trans-sabinene hydrate in other oils.
Aroma and practical use
- Use the recorded herbal, minty, eucalyptus-like, green, terpenic, spicy, cooling, herbaceous 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.
direct antimicrobial screening
A 2024 full-text study reported that sabinene hydrate showed its strongest measured activity against Gram-positive bacteria, with MIC values of 0.0312 mg/mL for Bacillus subtilis and 0.0625 mg/mL for Staphylococcus aureus in the disc-volatilization method; the tested material was mainly the trans isomer.
Measured: growth inhibition and minimum inhibitory concentrations
This experimental finding does not establish benefit, dose or safety in people using this blend.
food antioxidant application
A food-stability abstract reported that sabinene hydrate inhibited oxidative deterioration products and undesirable oxidized-cardboard flavors in roasted sunflower seeds and had the strongest peroxide-prevention effect among the tested monoterpenes in that experiment.
Measured: peroxide formation, hexanal formation, and off-flavor development
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
enzyme level biosynthesis
A classic enzymology paper demonstrated a divalent-cation-dependent sabinene hydrate cyclase in sweet marjoram that produced both cis- and trans-sabinene hydrate and favored geranyl pyrophosphate over neryl pyrophosphate as substrate.
Measured: cyclization of geranyl pyrophosphate to cis- and trans-sabinene hydrate
This reference does not establish a therapeutic result or a safe use level for a custom oil 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 reviewed in this pass lists sabinene hydrate as a flavor and fragrance agent and shows a maximum skin level for fine fragrances of 0.0200% with a recommendation of up to 0.5000% in fragrance concentrate.
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.
The strongest direct antimicrobial paper used commercial sabinene hydrate composed mainly of the trans isomer, so generic or cis-specific safety and efficacy conclusions should remain conservative.
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 constituent-specific human clinical safety paper for isolated sabinene hydrate 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
water derived hydroxylation during cyclase formation
An early marjoram enzyme study reported quantitative incorporation of label from H2(18)O into both cis- and trans-sabinene hydrate, supporting water as the source of the hydroxyl oxygen during sabinene hydrate cyclization.
This reference does not establish a therapeutic result or a safe use level for a custom oil blend.
stereoselective terpene synthase control
A thyme biosynthesis study identified two related terpene synthases that formed opposing sabinene-hydrate enantiomers and linked stereospecificity to the first linalyl-diphosphate-forming step.
This reference does not establish a therapeutic result or a safe use level for a custom oil 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)
- Public registry and literature sources often merge generic sabinene hydrate with stereospecific cis or trans records, so isomer-level transfer should be made carefully.
- No human clinical literature for isolated sabinene hydrate was verified in this pass.
- Constituent-specific repeated-dose toxicology and sensitization data were not located in the reviewed public sources.
- 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.