Methyl 3-Oxo-2-Pentenylcyclopentaneacetate

INCI: METHYL 3-OXO-2-PENTENYLCYCLOPENTANEACETATE

CAS Number
1211-29-0
Function
Fragrance ingredient - this is a specific stereoisomeric form of methyl jasmonate
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status restricted
🇺🇸 US Status permitted
US Notes Allowed - not on any FDA prohibited/restricted list for cosmetics

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Generally regarded as safe at typical fragrance use levels; potential skin sensitization at high concentrations (as with most jasmonates); should be used within IFRA guidelines. Jasmine-type floral aroma; the IUPAC name is methyl (1R-(1α,2β(Z)))-3-oxo-2-(pent-2-enyl)cyclopentaneacetate - a cis-jasmonate isomer

⚠️
Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is Methyl 3-Oxo-2-Pentenylcyclopentaneacetate safe in cosmetics?

Generally regarded as safe at typical fragrance use levels; potential skin sensitization at high concentrations (as with most jasmonates); should be used within IFRA guidelines. Jasmine-type floral aroma; the IUPAC name is methyl (1R-(1α,2β(Z)))-3-oxo-2-(pent-2-enyl)cyclopentaneacetate - a cis-jasmonate isomer The EU classifies Methyl 3-Oxo-2-Pentenylcyclopentaneacetate as "restricted". Safety rating: MODERATE.

Is Methyl 3-Oxo-2-Pentenylcyclopentaneacetate allowed in the EU?

Methyl 3-Oxo-2-Pentenylcyclopentaneacetate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methyl 3-Oxo-2-Pentenylcyclopentaneacetate do in cosmetics?

Methyl 3-Oxo-2-Pentenylcyclopentaneacetate functions as: Fragrance ingredient - this is a specific stereoisomeric form of methyl jasmonate. It is classified as a cosmetic ingredient in our database. CAS number: 1211-29-0.

What is the Margin of Safety for Methyl 3-Oxo-2-Pentenylcyclopentaneacetate?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

📱

Is Methyl 3-Oxo-2-Pentenylcyclopentaneacetate in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Methyl 3-Oxo-2-Pentenylcyclopentaneacetate in your formulation.