Undecatriene

Also known as: EINECS 240-416-1, FEMA No. 3795, UNII-PWB1EM60KN

INCI: UNDECATRIENE (1,3,5-UNDECATRIENE)

Undecatriene (CAS 16356-11-9) is a cosmetic cosmetic ingredient functioning as Fragrance / Perfuming. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 16356-11-9 →

Auto-generated CPSR Part A draft with source citations
Function
Fragrance / Perfuming
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C11H18
MW
150.26 g/mol
PubChem CID
61832
IUPAC Name
undeca-1,3,5-triene
InChIKey
JQQDKNVOSLONRS-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted for use in cosmetics; no specific restrictions. RIFM safety assessment completed

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Undecatriene.

Calculate MoS for your specific formulation with the MoS Calculator.

HRIPT Human Patch Test Studies

2 human repeat insult patch tests aggregated from dermatological literature.

Test Type N Sensitized Dose µg/cm² NESIL µg/cm² Potency
HMT - 0 675 - -
HRIPT - 0 - - -

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Regulatory (2)
JECFA Number
1341
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
1,3,5-UNDECATRIENE | 2004 | No safety concern at current levels of intake when used as a flavouring agent | TRS 928-JECFA 63/64 | FAS 54-JECFA 63/235
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Flavouring and nutrient Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List FDA Substances Added to Food (EAFUS)

Expert Verdict

Expert safety assessment and concern-level summary for Undecatriene.

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Known Synonyms

EINECS 240-416-1 FEMA No. 3795 UNII-PWB1EM60KN

Chemical Function

Fragrance Flavouring and nutrient

Regulatory Lists

IFRA Transparency food_additive; Substances Added to Food (formerly EAFUS) (2/2019) Europe

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Undecatriene safe in cosmetics?

Undecatriene has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is Undecatriene allowed in the EU?

Undecatriene EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Undecatriene do in cosmetics?

Undecatriene functions as: Fragrance / Perfuming. It is classified as a cosmetic ingredient in our database. CAS number: 16356-11-9.

Is Undecatriene used outside cosmetics?

Undecatriene also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Undecatriene have different safety status in cosmetics vs industrial chemicals?

Undecatriene is classified GHS Danger (H304, H315, H400, H410) in the chemicals database but is allowed in EU cosmetics.

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