Is PEG-9 Diethylmonium Chloride safe in cosmetics?
PEG-9 Diethylmonium Chloride has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.
Poor
Cosmetic Ingredient
PEG-9 Diethylmonium Chloride
Also known as: Poly[oxy(methyl-1,2-ethanediyl)], α-[2-(diethylmethylammonio)methylethyl]-ω-hydroxy-, chloride, PPG-25 diethylmonium chloride, Quaternium 21, Quaternium 6, Adekacol EC-CC 9 (+13 more)
INCI: PPG-9 DIETHYLMONIUM CHLORIDE
PEG-9 Diethylmonium Chloride (CAS 9042-76-6) is a cosmetic cosmetic ingredient functioning as Antistatic agent; hair conditioning agent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 9042-76-6 →
Auto-generated CPSR Part A draft with source citations
Function
Antistatic agent; hair conditioning agent
Safety Rating
POOR
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
CIR: INSUFFICIENT DATA — data inadequate to support safety
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for PEG-9 Diethylmonium Chloride.
Calculate MoS for your specific formulation with the MoS Calculator.
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Anti-static agent
Emulsifier
Softener and conditioner
Surfactant (surface active agent)
Expert Verdict
Expert safety assessment and concern-level summary for PEG-9 Diethylmonium Chloride.
Regulatory Flags
potential-allergen
peg-ingredient
Known Synonyms
Poly[oxy(methyl-1,2-ethanediyl)], α-[2-(diethylmethylammonio)methylethyl]-ω-hydroxy-, chloride
PPG-25 diethylmonium chloride
Quaternium 21
Quaternium 6
Adekacol EC-CC 9
Poly[oxy(methyl-1,2-ethanediyl)], α-[2-(diethylmethylammonio)methylethyl]-ω-hydroxy-, chloride (1:1)
Adekacol CC 12
Adekacol CC 15
Adekacol CC 36
Adekacol CC 42
Adekacol CC 9
Emcol CC 25
Emcol CC 36
Emcol CC 42
Emcol CC 55
Emcol CC 9
N,N-Diethyl-2-(3-hydroxypropoxy)-N-methylethan-1-aminium chloride-methane (1:1:1)
CC 36
Chemical Function
Surfactant (surface active agent)
Anti-static agent
Emulsifier
Softener and conditioner
Australian Status
AICIS status: listed
Frequently Asked Questions
Is PEG-9 Diethylmonium Chloride allowed in the EU?
PEG-9 Diethylmonium Chloride EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does PEG-9 Diethylmonium Chloride do in cosmetics?
PEG-9 Diethylmonium Chloride functions as: Antistatic agent; hair conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 9042-76-6.
Compliance Tools
Check PEG-9 Diethylmonium Chloride compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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