C12-13 Pareth-5

INCI: C12-13 PARETH-5 (NEW: C12-13 ALKETH-5)

CAS Number
66455-14-9 (ethoxylated C12-13 alcohol, 5 mol EO average)
Function
Surfactant - cleansing; surfactant - emulsifying
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - not prohibited or restricted

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

1,4-dioxane residue risk from ethoxylation; higher EO count increases water solubility, which may slightly increase skin penetration enhancement potential. Nonionic, 5 moles average EO. Higher HLB than Pareth-3/4 - better suited as primary O/W emulsifier. More water-soluble

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Concern Level: Moderate

Frequently Asked Questions

Is C12-13 Pareth-5 safe in cosmetics?

1,4-dioxane residue risk from ethoxylation; higher EO count increases water solubility, which may slightly increase skin penetration enhancement potential. Nonionic, 5 moles average EO. Higher HLB than Pareth-3/4 - better suited as primary O/W emulsifier. More water-soluble The EU classifies C12-13 Pareth-5 as "permitted". Safety rating: MODERATE.

Is C12-13 Pareth-5 allowed in the EU?

C12-13 Pareth-5 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does C12-13 Pareth-5 do in cosmetics?

C12-13 Pareth-5 functions as: Surfactant - cleansing; surfactant - emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 66455-14-9 (ethoxylated C12-13 alcohol, 5 mol EO average).

What is the Margin of Safety for C12-13 Pareth-5?

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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