Phenyl t-Butylnitrone

INCI: PHENYL T-BUTYLNITRONE

CAS Number
3376-24-7 [^1_11]
Function
Antioxidant (spin trap / free radical scavenger)
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes No specific FDA restriction; FDA UNII: 3I91332OPG; primarily a research chemical

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Primarily a research spin-trap reagent with pharmacological activity (inhibits NF-κB, COX-2, iNOS, and lipid peroxidation) that raises questions about cosmetic suitability; any safety assessment would require custom toxicological testing.

⚠️
Concern Level: Moderate

Frequently Asked Questions

Is Phenyl t-Butylnitrone safe in cosmetics?

Primarily a research spin-trap reagent with pharmacological activity (inhibits NF-κB, COX-2, iNOS, and lipid peroxidation) that raises questions about cosmetic suitability; any safety assessment would require custom toxicological testing. The EU classifies Phenyl t-Butylnitrone as "permitted". Safety rating: MODERATE.

Is Phenyl t-Butylnitrone allowed in the EU?

Phenyl t-Butylnitrone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Phenyl t-Butylnitrone do in cosmetics?

Phenyl t-Butylnitrone functions as: Antioxidant (spin trap / free radical scavenger). It is classified as a cosmetic ingredient in our database. CAS number: 3376-24-7 [^1_11].

What is the Margin of Safety for Phenyl t-Butylnitrone?

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.

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