Sodium Stearyl Sulfate

Also known as: EINECS 214-295-0, Octadecyl sodium sulfate, Sodium monooctadecyl sulfate, Sodium monostearyl sulfate, Sodium octadecyl sulfate

INCI: SODIUM STEARYL SULFATE

Sodium Stearyl Sulfate (CAS 1120-04-3) is a cosmetic cosmetic ingredient functioning as Cleansing agent, surfactant (cleansing), surfactant (emulsifying). EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 1120-04-3 →

Auto-generated CPSR Part A draft with source citations
Function
Cleansing agent, surfactant (cleansing), surfactant (emulsifying)
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C18H37NaO4S
MW
372.5 g/mol
PubChem CID
23673604
IUPAC Name
sodium octadecyl sulfate
InChIKey
NWZBFJYXRGSRGD-UHFFFAOYSA-M

Regulatory Status

EU EU Status restricted
US US Status permitted
US Notes No specific restriction; CIR Expert Panel concluded safe for use as a cosmetic ingredient

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 Stearyl Sulfate.

Calculate MoS for your specific formulation with the MoS Calculator.

Additional Ingredient Properties

2 property records from structured ingredient metadata.

baby_pediatric
{"cas_number": "CAS-30847", "ingredient_class": "cleanser_baby", "pediatric_safety_rating": "good", "minimum_age_months": "3", "neonatal_safe": "no", "premature_infant_safe": "insufficient_data", "skin_barrier_maturity_consideration": "Mild derivative surfactant", "transepidermal_absorption_risk_pediatric": "low", "systemic_exposure_concern_pediatric": "low", "dose_per_kg_body_weight_concern": "Su…
surfactant
{"cas_number": "67101-79-9", "surfactant_type": "anionic", "chemical_class": "sulfate", "charge_at_use_ph": "negative", "cmc_critical_micelle_concentration_mm": "6.298302486226859", "hlb_value": "33.0", "foam_volume_ml_ross_miles": "144", "foam_quality": "dense", "foam_stability_5min_pct": "78", "cleansing_power_rating_1_to_10": "8.294696355843104", "oil_emulsification_capacity": "good", "sebum_re…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Cleaning agent Emulsifier Surfactant (surface active agent)

Expert Verdict

Expert safety assessment and concern-level summary for Sodium Stearyl Sulfate.

Regulatory Flags

natural-origin

Known Synonyms

EINECS 214-295-0 Octadecyl sodium sulfate Sodium monooctadecyl sulfate Sodium monostearyl sulfate Sodium octadecyl sulfate

Chemical Function

Surfactant (surface active agent) Emulsifier Cleaning agent

Regulatory Lists

inert_ingredient; non_food_use; Pesticides

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
SODIUM OCTADECYL SULFATE
ChEMBL ID
CHEMBL462322
View full pharmaceutical profile →

Frequently Asked Questions

Is Sodium Stearyl Sulfate safe in cosmetics?

Sodium Stearyl Sulfate has a safety rating of "GOOD" in our database. EU status: restricted. US status: permitted.

Is Sodium Stearyl Sulfate allowed in the EU?

Sodium Stearyl Sulfate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Stearyl Sulfate do in cosmetics?

Sodium Stearyl Sulfate functions as: Cleansing agent, surfactant (cleansing), surfactant (emulsifying). It is classified as a cosmetic ingredient in our database. CAS number: 1120-04-3.

Is Sodium Stearyl Sulfate used outside cosmetics?

Sodium Stearyl Sulfate also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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