2-Ethylpentyl-1,3-Dioxolane

Also known as: trans-2,cis-6-Nonadienal diethylacetal, EINECS 266-874-2, FEMA No. 3378, 2-trans-6-cis-Nonadienal diethyl acetal, 2-trans-6-cis-Nonadienal diethylacetal (+2 more)

INCI: 2-ETHYLPENTYL-1,3-DIOXOLANE

2-Ethylpentyl-1,3-Dioxolane (CAS 67674-36-6) is a cosmetic cosmetic ingredient functioning as Fragrance ingredient (cyclic acetal). 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 and pharmaceutical data.

View industrial chemical safety profile for CAS 67674-36-6 →

Auto-generated CPSR Part A draft with source citations
Function
Fragrance ingredient (cyclic acetal)
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C13H24O2
MW
212.33 g/mol
PubChem CID
6364671
IUPAC Name
(2E,6Z)-1,1-diethoxynona-2,6-diene
InChIKey
GCIRJCKOUVCUBZ-OFALOCIGSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Not specifically restricted by FDA; RIFM coverage within acetal/dioxolane group

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for 2-Ethylpentyl-1,3-Dioxolane.

Calculate MoS for your specific formulation with the MoS Calculator.

PubChem Annotations

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

Regulatory (2)
JECFA Number
946
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
2,6-NONADIENAL DIETHYL ACETAL | 2001 | No safety concern at current levels of intake when used as a flavouring agent | TRS 909-JECFA 57/107 | FAS 48-JECFA 57/369
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Deodorizer Flavouring and nutrient Fragrance
Regulatory List Membership (1)
IFRA Fragrance Transparency List

Expert Verdict

Expert safety assessment and concern-level summary for 2-Ethylpentyl-1,3-Dioxolane.

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance

Known Synonyms

trans-2,cis-6-Nonadienal diethylacetal EINECS 266-874-2 FEMA No. 3378 2-trans-6-cis-Nonadienal diethyl acetal 2-trans-6-cis-Nonadienal diethylacetal trans-2,cis-6-Nonadienal diethyl acetal UNII-V5C72V7U8P

Chemical Function

Deodorizer Fragrance Flavouring and nutrient

Regulatory Lists

Europe IFRA Transparency

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

ChEMBL ID
CHEMBL3188466
View full pharmaceutical profile →

Frequently Asked Questions

Is 2-Ethylpentyl-1,3-Dioxolane safe in cosmetics?

2-Ethylpentyl-1,3-Dioxolane has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is 2-Ethylpentyl-1,3-Dioxolane allowed in the EU?

2-Ethylpentyl-1,3-Dioxolane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 2-Ethylpentyl-1,3-Dioxolane do in cosmetics?

2-Ethylpentyl-1,3-Dioxolane functions as: Fragrance ingredient (cyclic acetal). It is classified as a cosmetic ingredient in our database. CAS number: 67674-36-6.

Is 2-Ethylpentyl-1,3-Dioxolane used outside cosmetics?

2-Ethylpentyl-1,3-Dioxolane also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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