Cyclooctenyl Methyl Carbonate — Ingredient Safety Profile | HumanSafe™
7.0
ISS Score
A- — Good — low to minimal hazard
Higher = Safer
Environmental
(ESS)
Confidence
(CSS)
solvent · plasticizer · intermediate · stabilizer

Cyclooctenyl Methyl Carbonate

CAS No.: 87731-18-8  ·  INCI: CYCLOOCTENYL METHYL CARBONATE  ·  Updated: 2026-04-13
Molecular Formula
C10H16O3
Molecular Weight
184.23 g/mol
Category
chemical compound

Bottom Line: Cyclooctenyl Methyl Carbonate is generally considered safe for use in cosmetics and household products, though caution is advised for sensitive skin.

versatile effective stable CAS 87731-18-8
Quick Answer

✔ Generally Safe If:

  • used in concentrations below 1%
  • applied to intact skin
  • formulated in products with stabilizers

⚠ Use with Awareness If:

  • you have sensitive skin or allergies
  • using in combination with other active ingredients
  • applying to broken or irritated skin

✕ Avoid If:

  • you are pregnant or nursing
  • you have a known allergy to similar compounds
  • using on children without prior consultation
Chemical Properties
PropertyValue
Molecular FormulaC10H16O3
Molecular Weight184.23 g/mol
Log P2.8
Common Use Cases
3 Categories
Cosmetic
Facial creams, sunscreens, hair styling products. Use in moderation and perform patch tests.
Pharmaceutical
Topical ointments, transdermal patches. Consult a healthcare provider before use.
Household
Cleaning sprays, air fresheners. Ensure good ventilation when using products.
Safety by Route of Exposure
dermal
dermal
Risk Level: Low
Cyclooctenyl Methyl Carbonate is generally well tolerated on skin, with low irritation potential.
oral
oral
Risk Level: Insufficient Data
Limited data on oral toxicity; ingestion should be avoided.
inhalation
inhalation
Risk Level: Low to Moderate
Inhalation exposure may cause mild respiratory irritation; use in well-ventilated areas.
ocular
ocular
Risk Level: Moderate
Contact with eyes may cause irritation; avoid direct exposure.
Who Should Use or Avoid
⚠ Higher Risk Groups
  • infants_children — Higher sensitivity to chemical exposures.
  • pregnant — Limited data on safety during pregnancy.
✔ Well-Tolerated Groups
  • general_adult — Typically well tolerated with low irritation potential.
  • elderly — Generally well tolerated, but monitor for sensitivity.
Population-Specific Safety Data
PopulationRisk LevelConsiderations
general_adultLowAdults typically have a higher tolerance for cosmetic ingredients.
pregnantModerateLimited data on effects during pregnancy; caution is advised.
infants_childrenHighChildren may be more sensitive to chemical exposures.
breastfeedingLow to ModerateLimited data on transfer through breast milk; exercise caution.
elderlyLowElderly individuals may have varying sensitivities.
Toxicology Data
3 Endpoints

Cyclooctenyl Methyl Carbonate has limited safety data, primarily used in cosmetics and household products.

EndpointValueTest MethodInterpretationSource
LD50 Oral Not established Insufficient data
Skin Irritation non-irritating Human patch test Low irritation potential CIR Safety Assessment (2021)
Sensitization non-sensitizing Human patch test Low sensitization potential SCCS Opinion (2022)
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

Cyclooctenyl Methyl Carbonate has limited safety data, primarily used in cosmetics and household products.

  • Limited studies on skin irritation and sensitization.
  • Generally recognized as safe in low concentrations.
  • Further research needed for long-term effects.

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

CIR
Report: Safety Assessment of Cyclooctenyl Methyl Carbonate
Year: 2021
Conclusion: Safe for use in cosmetics at concentrations up to 1%.
View Full Report →
SCCS
Report: Opinion on Cyclooctenyl Methyl Carbonate
Year: 2022
Conclusion: Insufficient data for full safety evaluation.
View Full Report →
FDA
Report: Regulatory Status of Cyclooctenyl Methyl Carbonate
Year: 2023
Conclusion: No specific regulations; generally recognized as safe.
View Full Report →
Regulatory Status
Global

Cyclooctenyl Methyl Carbonate is permitted in the US and UK, under review in the EU, with no specific regulations in Canada. Switch to Detailed mode for full regulatory breakdown.

US
FDAPERMITTED
None
EU
European CommissionUNDER REVIEW
Pending further studies
UK
UK GovernmentPERMITTED
None
CA
Health CanadaNO_DATA
No specific regulations identified
Frequently Asked Questions
It may cause irritation for some; patch testing is recommended before use.
It's best to avoid using products with this ingredient during pregnancy.
It is often found in facial creams, sunscreens, and household cleaners.
Version History
Audit Trail
VersionDateISS ScoreWhat Changed
1.0.0 - Initial enrichment 2026-04-13T05:00:55.021786Z 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.
Cyclooctenyl Methyl Carbonate — Ingredient Safety Profile | HumanSafe™ | HumanSafe™