Moderate Cosmetic Ingredient NOAEL Data

2-Furylmethanethiol

INCI: 2-FURYLMETHANETHIOL

CAS Number
98-02-2
Function
Fragrance ingredient (sulfur-containing furanyl compound); primarily a flavoring agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA-recognized as GRAS flavoring agent; not specifically restricted for cosmetics

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-Furylmethanethiol. 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 3 mg/kg bw/day oral rat Short Term Toxicity COSMOS_DB
dose_tested 3 mg/kg bw/day oral rat Short Term Toxicity COSMOS_DB

Expert Verdict

Thiols are reactive with skin proteins, presenting a sensitization concern. Strong pungent odor limits practical use levels in cosmetics. Primarily used in food flavoring rather than leave-on cosmetics. The furan ring adds metabolic activation considerations.

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Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance fda_food_additive

Frequently Asked Questions

Is 2-Furylmethanethiol safe in cosmetics?

Thiols are reactive with skin proteins, presenting a sensitization concern. Strong pungent odor limits practical use levels in cosmetics. Primarily used in food flavoring rather than leave-on cosmetics. The furan ring adds metabolic activation considerations. The EU classifies 2-Furylmethanethiol as "permitted". Safety rating: MODERATE. 2 toxicological study endpoint(s) are available in our database.

Is 2-Furylmethanethiol allowed in the EU?

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

What does 2-Furylmethanethiol do in cosmetics?

2-Furylmethanethiol functions as: Fragrance ingredient (sulfur-containing furanyl compound); primarily a flavoring agent. It is classified as a cosmetic ingredient in our database. CAS number: 98-02-2.

What is the Margin of Safety for 2-Furylmethanethiol?

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-Furylmethanethiol?

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

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