Moderate Cosmetic Ingredient NOAEL Data

2-Methylfuran-3-Thiol

INCI: 2-METHYLFURAN-3-THIOL

CAS Number
28588-74-1
Function
Fragrance ingredient
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no FDA restriction

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

2 study endpoints found for 2-Methylfuran-3-Thiol. 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 5 mg/kg bw/day oral rat Subchronic COSMOS_DB
dose_tested 5 mg/kg bw/day oral rat Subchronic COSMOS_DB

Expert Verdict

Reactive thiol group; furan ring can undergo metabolic activation; extremely potent odorant used at trace levels which mitigates exposure concern; limited chronic toxicity data.

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Concern Level: High

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Frequently Asked Questions

Is 2-Methylfuran-3-Thiol safe in cosmetics?

Reactive thiol group; furan ring can undergo metabolic activation; extremely potent odorant used at trace levels which mitigates exposure concern; limited chronic toxicity data. The EU classifies 2-Methylfuran-3-Thiol as "prohibited". Safety rating: MODERATE. 2 toxicological study endpoint(s) are available in our database.

Is 2-Methylfuran-3-Thiol allowed in the EU?

2-Methylfuran-3-Thiol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does 2-Methylfuran-3-Thiol do in cosmetics?

2-Methylfuran-3-Thiol functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 28588-74-1.

What is the Margin of Safety for 2-Methylfuran-3-Thiol?

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 2-Methylfuran-3-Thiol?

The NOAEL (No Observed Adverse Effect Level) for 2-Methylfuran-3-Thiol is 5 mg/kg bw/day based on a Subchronic study via oral route in rat. A total of 2 study endpoints are available. Source: COSMOS_DB.

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