Trideceth-3

INCI: TRIDECETH-3

CAS Number
4403-12-7 (defined compound); 24938-91-8 / 69011-36-5 (generic polymer CAS)
Function
Surfactant – emulsifying (low HLB ~8, W/O co-emulsifier)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes No restriction; permitted as indirect food additive; CIR-safe as used

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

More lipophilic than higher-EO homologs → greater dermal absorption potential; 1,4-dioxane/EO residuals; may cause skin/eye irritation at higher concentrations

⚠️
Concern Level: Moderate

Frequently Asked Questions

Is Trideceth-3 safe in cosmetics?

More lipophilic than higher-EO homologs → greater dermal absorption potential; 1,4-dioxane/EO residuals; may cause skin/eye irritation at higher concentrations The EU classifies Trideceth-3 as "permitted". Safety rating: GOOD.

Is Trideceth-3 allowed in the EU?

Trideceth-3 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Trideceth-3 do in cosmetics?

Trideceth-3 functions as: Surfactant – emulsifying (low HLB ~8, W/O co-emulsifier). It is classified as a cosmetic ingredient in our database. CAS number: 4403-12-7 (defined compound); 24938-91-8 / 69011-36-5 (generic polymer CAS).

What is the Margin of Safety for Trideceth-3?

adequate 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 Trideceth-3 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 Trideceth-3 in your formulation.