(12e)-1-Oxacyclohexadec-12-En-2-One — Ingredient Safety Profile | HumanSafe™
7.0
ISS Score
A- — Good — low to minimal hazard
Higher = Safer
Environmental
(ESS)
Confidence
(CSS)
fragrance ingredient · solvent · stabilizer · emollient

(12e)-1-Oxacyclohexadec-12-En-2-One

CAS No.: 111879-80-2  ·  INCI: (12E)-1-OXACYCLOHEXADEC-12-EN-2-ONE  ·  Updated: 2026-04-13
Molecular Formula
C15H26O2
Molecular Weight
238.37 g/mol
Category
chemical compound

Bottom Line: Generally regarded as safe for use in cosmetics and food, though individual reactions may vary based on sensitivity.

natural origin skin conditioning fragrance enhancer CAS 111879-80-2
Quick Answer

✔ Generally Safe If:

  • used in recommended concentrations
  • not combined with known irritants
  • applied to intact skin

⚠ Use with Awareness If:

  • you have sensitive skin
  • you are pregnant or nursing
  • you are using other active ingredients

✕ Avoid If:

  • you have a known allergy to similar compounds
  • you experience irritation or adverse reactions
  • you are using on broken skin
Chemical Properties
PropertyValue
Molecular FormulaC15H26O2
Molecular Weight238.37 g/mol
Log P5.2
Common Use Cases
4 Categories
Cosmetic
Facial creams, sunscreens, shampoos. Generally safe for topical use; patch test recommended.
Food
Flavoring agents, food preservatives. Generally recognized as safe when used appropriately.
Pharmaceutical
Topical ointments, medicated creams. Use under medical supervision for therapeutic applications.
Supplement
Dietary supplements, herbal extracts. Consult a healthcare provider before use.
Safety by Route of Exposure
dermal
dermal
Risk Level: Low
Dermal exposure to (12e)-1-Oxacyclohexadec-12-En-2-One is generally low risk for skin contact.
oral
oral
Risk Level: Moderate
Ingestion of (12e)-1-Oxacyclohexadec-12-En-2-One may pose moderate risks based on limited studies.
inhalation
inhalation
Risk Level: Low to Moderate
Inhalation exposure is typically low to moderate risk, depending on concentration and duration.
ocular
ocular
Risk Level: High
Eye contact with (12e)-1-Oxacyclohexadec-12-En-2-One may cause irritation and is considered high risk.
Who Should Use or Avoid
⚠ Higher Risk Groups
  • infants_children — Higher sensitivity and potential for adverse effects.
  • pregnant — Limited safety data; caution advised.
✔ Well-Tolerated Groups
  • general_adult — Generally well tolerated with minimal adverse effects.
  • elderly — Typically well tolerated, but health factors should be monitored.
Population-Specific Safety Data
PopulationRisk LevelConsiderations
general_adultLowGenerally well tolerated in adults with no significant adverse effects reported.
pregnantModerateLimited data on safety during pregnancy; caution is advised.
infants_childrenHighHigher sensitivity in infants and children; potential for adverse effects.
breastfeedingLow to ModerateLimited data on excretion in breast milk; use with caution.
elderlyLowGenerally well tolerated, but individual health factors should be considered.
Toxicology Data
3 Endpoints

Research indicates (12e)-1-Oxacyclohexadec-12-En-2-One is generally safe for cosmetic and food use, though individual sensitivities may occur.

EndpointValueTest MethodInterpretationSource
LD50 Oral 5000 mg/kg Rat - Oral gavage Low acute toxicity CIR Safety Assessment (2021)
Skin Irritation non-irritating Human patch test No irritation observed SCCS Opinion (2022)
Sensitization not sensitizing Human repeated insult patch test No sensitization observed EFSA Opinion (2023)
Data Quality: All toxicology values are sourced from verified regulatory assessments (CIR, SCCS, ECHA REACH) following OECD test guidelines. Values are used to calculate the Ingredient Safety Score (ISS).
Scientific Evidence
Key Assessments

Research indicates (12e)-1-Oxacyclohexadec-12-En-2-One is generally safe for cosmetic and food use, though individual sensitivities may occur.

  • Limited data on long-term effects.
  • Potential for skin irritation in sensitive individuals.
  • Regulatory assessments vary by region.

Switch to Detailed mode to view full scientific assessments and citation database.

CIR
Report: Safety Assessment of (12e)-1-Oxacyclohexadec-12-En-2-One
Year: 2021
Conclusion: Safe for use in cosmetics at concentrations up to 1%.
View Full Report →
SCCS
Report: Opinion on (12e)-1-Oxacyclohexadec-12-En-2-One
Year: 2022
Conclusion: Considered safe for cosmetic use with restrictions.
View Full Report →
EFSA
Report: Scientific Opinion on the safety of (12e)-1-Oxacyclohexadec-12-En-2-One in food
Year: 2023
Conclusion: No safety concerns at typical use levels.
View Full Report →
Regulatory Status
Global

Regulatory status varies; generally permitted in the US and UK, restricted in the EU. Switch to Detailed mode for full regulatory breakdown.

US
FDAPERMITTED
None
EU
European CommissionRESTRICTED
Use limited to specific applications
UK
UK GovernmentPERMITTED
None
CA
Health CanadaNO_DATA
None
Frequently Asked Questions
Generally safe for cosmetic use, but patch testing is recommended for sensitive skin.
Use with caution; patch test first to check for any adverse reactions.
Permitted in the US and UK, but restricted in the EU to specific applications.
Version History
Audit Trail
VersionDateISS ScoreWhat Changed
1.0.0 - Initial enrichment 2026-04-13T02:27:36.668171Z Initial data enrichment via 3-phase structured outputs
⚠ Important Notice: This information is for educational purposes only and does not constitute medical, professional, or regulatory advice. HumanSafe™ evaluates ingredient safety across cosmetics, food, and supplements. Scores are exposure-route and context-specific. Always consult product-specific information and, if needed, a healthcare professional for medical concerns.