Is Sodium Methylnaphthalenesulfonate safe in cosmetics?
Sodium Methylnaphthalenesulfonate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Sodium Methylnaphthalenesulfonate
Also known as: Naphthalenesulfonic acid, methyl-, sodium salt (1:1), Naphthalenesulfonic acid, methyl-, sodium salt, Methylnaphthylene sodium sulfonate, Monomethyl naphthalene sulfonate sodium salt, Petro AG Special Liquid (+5 more)
INCI: SODIUM METHYLNAPHTHALENESULFONATE
Sodium Methylnaphthalenesulfonate (CAS 26264-58-4) is a cosmetic cosmetic ingredient functioning as Hydrotrope, surfactant. 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 26264-58-4 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Sodium Methylnaphthalenesulfonate is classified GHS Danger (H315, H318, H319) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Hydrotrope, surfactant
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
sodium 2-methylnaphthalene-1-sulfonate
InChIKey
GCNLRNBDDUYJMP-UHFFFAOYSA-M
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
CIR assessed related naphthalenesulfonates — safe for skin application but insufficient data for mucous membrane/ingestion use
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 Methylnaphthalenesulfonate.
Calculate MoS for your specific formulation with the MoS Calculator.
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Solubility enhancer
Surfactant (surface active agent)
Expert Verdict
Expert safety assessment and concern-level summary for Sodium Methylnaphthalenesulfonate.
Known Synonyms
Naphthalenesulfonic acid, methyl-, sodium salt (1:1)
Naphthalenesulfonic acid, methyl-, sodium salt
Methylnaphthylene sodium sulfonate
Monomethyl naphthalene sulfonate sodium salt
Petro AG Special Liquid
sodium methylnaphthalenesulphonate
Petro 22
EINECS No.: 247-564-6
247-564-6
EC No.: 247-564-6
Chemical Function
Surfactant (surface active agent)
Solubility enhancer
Regulatory Lists
inert_ingredient; non_food_use; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Sodium Methylnaphthalenesulfonate allowed in the EU?
Sodium Methylnaphthalenesulfonate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Sodium Methylnaphthalenesulfonate do in cosmetics?
Sodium Methylnaphthalenesulfonate functions as: Hydrotrope, surfactant. It is classified as a cosmetic ingredient in our database. CAS number: 26264-58-4.
Is Sodium Methylnaphthalenesulfonate used outside cosmetics?
Sodium Methylnaphthalenesulfonate 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 Methylnaphthalenesulfonate have different safety status in cosmetics vs industrial chemicals?
Sodium Methylnaphthalenesulfonate is classified GHS Danger (H315, H318, H319) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Sodium Methylnaphthalenesulfonate 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
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