Is Sodium Ceteth-13 Carboxylate safe in cosmetics?
Sodium Ceteth-13 Carboxylate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Sodium Ceteth-13 Carboxylate
Also known as: Poly(oxy-1,2-ethanediyl), alpha-(carboxymethyl)-omega-(hexadecyloxy)-, sodium salt (1:1), PEG-13 Cetyl ether carboxylic acid, sodium salt, alpha-(Carboxymethyl)-omega-(hexadecyloxy)poly(oxy-1,2-ethanediyl), sodium salt, Cetyloxypoly(ethyleneoxy)acetic acid, sodium salt, Polyoxyethylene (13) cetyl ether carboxylic acid, sodium salt (+1 more)
INCI: SODIUM CETETH-13 CARBOXYLATE
Sodium Ceteth-13 Carboxylate (CAS 33939-65-0) is a cosmetic cosmetic ingredient functioning as Surfactant (cleansing), surfactant (emulsifying). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 33939-65-0 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Sodium Ceteth-13 Carboxylate is classified GHS Danger (H315, H318) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Surfactant (cleansing), surfactant (emulsifying)
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
sodium 2-(2-hexadecoxyethoxy)acetate
InChIKey
DWPSYGLTBCBSMP-UHFFFAOYSA-M
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted; same CIR family as above
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Sodium Ceteth-13 Carboxylate.
Calculate MoS for your specific formulation with the MoS Calculator.
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Emulsifier
Surfactant (surface active agent)
Expert Verdict
Expert safety assessment and concern-level summary for Sodium Ceteth-13 Carboxylate.
Known Synonyms
Poly(oxy-1,2-ethanediyl), alpha-(carboxymethyl)-omega-(hexadecyloxy)-, sodium salt (1:1)
PEG-13 Cetyl ether carboxylic acid, sodium salt
alpha-(Carboxymethyl)-omega-(hexadecyloxy)poly(oxy-1,2-ethanediyl), sodium salt
Cetyloxypoly(ethyleneoxy)acetic acid, sodium salt
Polyoxyethylene (13) cetyl ether carboxylic acid, sodium salt
Sodium;2-(2-hexadecoxyethoxy)acetate
Chemical Function
Surfactant (surface active agent)
Emulsifier
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Sodium Ceteth-13 Carboxylate allowed in the EU?
Sodium Ceteth-13 Carboxylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Sodium Ceteth-13 Carboxylate do in cosmetics?
Sodium Ceteth-13 Carboxylate functions as: Surfactant (cleansing), surfactant (emulsifying). It is classified as a cosmetic ingredient in our database. CAS number: 33939-65-0.
Is Sodium Ceteth-13 Carboxylate used outside cosmetics?
Sodium Ceteth-13 Carboxylate also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does Sodium Ceteth-13 Carboxylate have different safety status in cosmetics vs industrial chemicals?
Sodium Ceteth-13 Carboxylate is classified GHS Danger (H315, H318) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Sodium Ceteth-13 Carboxylate 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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