Is C11-21 Pareth-3 safe in cosmetics?
C11-21 Pareth-3 has a safety rating of "GOOD" in our database. EU status: restricted. US status: permitted.
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Cosmetic Ingredient
C11-21 Pareth-3
INCI: C11-21 ALKETH-3
C11-21 Pareth-3 (CAS Not uniquely assigned (UVCB substance); parent group CAS overlaps with C11-21 Pareth series) is a cosmetic cosmetic ingredient functioning as Surfactant — emulsifying. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
Not uniquely assigned (UVCB substance); parent group CAS overlaps with C11-21 Pareth series
View industrial chemical safety profile →
Function
Surfactant — emulsifying
Safety Rating
GOOD
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Adequate per CIR group read-across
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for C11-21 Pareth-3.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for C11-21 Pareth-3.
Frequently Asked Questions
Is C11-21 Pareth-3 allowed in the EU?
C11-21 Pareth-3 EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does C11-21 Pareth-3 do in cosmetics?
C11-21 Pareth-3 functions as: Surfactant — emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (UVCB substance); parent group CAS overlaps with C11-21 Pareth series.
Compliance Tools
Check C11-21 Pareth-3 compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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