Moderate Cosmetic Ingredient NOAEL Data

3,4-Dimethylcyclopentane-1,2-Dione

INCI: 3,4-DIMETHYLCYCLOPENTANE-1,2-DIONE

CAS Number
13494-07-0
Function
Perfuming / flavoring (alpha-diketone, butterscotch-type note)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted in cosmetics; FEMA GRAS as a flavoring

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

1 study endpoint found for 3,4-Dimethylcyclopentane-1,2-Dione. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 500 mg/kg bw/day oral rat Subchronic COSMOS_DB

Expert Verdict

Alpha-diketone with butterscotch-type fragrance note; inhalation hazard risk primarily associated with diacetyl but structural class warrants caution in sprayable or aerosolized products. Verify IFRA restrictions for intended use category.

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Frequently Asked Questions

Is 3,4-Dimethylcyclopentane-1,2-Dione safe in cosmetics?

Alpha-diketone with butterscotch-type fragrance note; inhalation hazard risk primarily associated with diacetyl but structural class warrants caution in sprayable or aerosolized products. Verify IFRA restrictions for intended use category. The EU classifies 3,4-Dimethylcyclopentane-1,2-Dione as "permitted". Safety rating: MODERATE. 1 toxicological study endpoint(s) are available in our database.

Is 3,4-Dimethylcyclopentane-1,2-Dione allowed in the EU?

3,4-Dimethylcyclopentane-1,2-Dione EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 3,4-Dimethylcyclopentane-1,2-Dione do in cosmetics?

3,4-Dimethylcyclopentane-1,2-Dione functions as: Perfuming / flavoring (alpha-diketone, butterscotch-type note). It is classified as a cosmetic ingredient in our database. CAS number: 13494-07-0.

What is the Margin of Safety for 3,4-Dimethylcyclopentane-1,2-Dione?

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.

What is the NOAEL for 3,4-Dimethylcyclopentane-1,2-Dione?

The NOAEL (No Observed Adverse Effect Level) for 3,4-Dimethylcyclopentane-1,2-Dione is 500 mg/kg bw/day based on a Subchronic study via oral route in rat. Source: COSMOS_DB.

๐Ÿ“ฑ

Is 3,4-Dimethylcyclopentane-1,2-Dione in Your Products?

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

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for 3,4-Dimethylcyclopentane-1,2-Dione in your formulation.