Ammonium Lauryl Sulfate

Also known as: Sulfuric acid, monododecyl ester, ammonium salt, Caswell No. 044B, Conco sulfate A, EINECS 218-793-9, EPA Pesticide Chemical Code 079028 (+3 more)

INCI: AMMONIUM LAURYL SULFATE

Ammonium Lauryl Sulfate (CAS 2235-54-3) is a cosmetic cosmetic ingredient functioning as Surfactant, Cleansing, Foaming. EU Regulation 1223/2009 status: permitted, max 16%. 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 2235-54-3 →

Auto-generated CPSR Part A draft with source citations
Function
Surfactant, Cleansing, Foaming
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C12H29NO4S
MW
283.43 g/mol
PubChem CID
16700
IUPAC Name
azanium dodecyl sulfate
InChIKey
BTBJBAZGXNKLQC-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
EU Max Conc. 16%
US US Status permitted
US Notes No specific FDA restriction. CIR Expert Panel assessed safe in 1983 and reaffirmed in 2005 for rinse-off formulations. Not listed on FDA prohibited or restricted ingredients list.

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Ammonium Lauryl Sulfate.

Calculate MoS for your specific formulation with the MoS Calculator.

Endocrine Disruptor Evidence (Expanded)

Cross-referenced EDC classifications, mechanism data, and dose-response evidence from EDLists, SIN List, and cosmetic-specific detail sources.

Cosmetic-Specific Mechanism
Category: surfactant
Receptor targets: ERα (via SDS-type membrane mechanism, very weak)
LOEC: N/A
EU status: allowed

very weak indirect modulator

Additional Ingredient Properties

8 property records from structured ingredient metadata.

comedogenicity_detail
{"comedogenicity_rating": "0", "irritancy_rating": "4", "skin_type_suitability": "oily", "acne_safe": "caution", "source": "Strong irritant"}
ecotoxicity
{"biodegradable": "yes", "biodegradation_days": "28-90", "bioaccumulative": "no", "aquatic_toxicity_level": "moderate", "coral_reef_safe": "no", "marine_toxicity": "similar to SLS", "freshwater_toxicity": "moderate fish toxicity", "endocrine_disruptor": "no", "persistent_organic_pollutant": "no", "microplastic": "no", "nano_particle": "no", "hawaii_banned": "no", "eu_restricted_environmental": "no…
hair_care
{"hair_function": "cleansing", "hair_type_suitability": "all", "curl_pattern_suitability": "all", "porosity_suitability": "all", "protein_sensitivity": "neutral", "moisture_protein_balance": "no", "cg_method_approved": "not-a-silicone", "silicone_type": "harsh", "sulfate_type": "no", "drying_alcohol": "no", "fatty_alcohol": "no", "heat_protectant": "no", "color_safe": "neutral", "keratin_bond": "y…
microbiome_impact
{"microbiome_effect": "negative", "prebiotic": "no", "probiotic_compatible": "no", "antimicrobial_spectrum": "broad", "preservative_effect_on_microbiome": "Similar to SLS; broad antimicrobial disruption; reduces diversity", "skin_flora_disruption": "severe", "gut_microbiome_risk": "low", "microbiome_recovery_time": "14-21 days", "selective_antimicrobial": "no", "pathogen_inhibition": "S. epidermid…
pediatric_safety
{"safe_for_newborn_0_6m": "caution", "safe_for_infant_6_12m": "caution", "safe_for_toddler_1_3y": "yes", "safe_for_child_3_12y": "yes", "safe_for_teen_12_18y": "yes", "pediatric_max_concentration_pct": "5.0", "adult_max_concentration_pct": "15.0", "pediatric_dermal_absorption_factor": "higher", "immature_skin_barrier_risk": "moderate", "oral_ingestion_risk": "low", "eye_irritation_risk": "moderate…
sensory
{"silky": "light", "smooth, glides easily": "foaming, cleansing", "dry-touch, non-greasy": "clean, fresh", "instant": "fast", "none": "very-high", "low": "low", "w/o": "o/w", "very-high": "high", "no": "no", "yes": "no", "1.40": "1.48", "transparent": "transparent", "colorless": "colorless", "excellent": "excellent", "light": "light", "synthetic": "synthetic"}
solubility_hlb
{"water_soluble": "yes", "oil_soluble": "no", "hlb_value": "35.0", "soluble_in": "water, ethanol", "insoluble_in": "oils, glycerin, silicones, propylene glycol", "log_p": "-1.4", "appearance": "clear liquid", "source": "BASF"}
surfactant
{"cas_number": "2235-54-3", "surfactant_type": "anionic", "chemical_class": "sulfate", "charge_at_use_ph": "negative", "cmc_critical_micelle_concentration_mm": "8.0", "hlb_value": "40.0", "foam_volume_ml_ross_miles": "170", "foam_quality": "dense", "foam_stability_5min_pct": "90", "cleansing_power_rating_1_to_10": "9.2", "oil_emulsification_capacity": "excellent", "sebum_removal_efficiency": "exce…

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (2)
Carcinogen Classification
Not listed by IARC. Certain nitrosamines are classified by IARC as either probably or possibly carcinogenic to humans (Groups 2A and 2B, respectively). (L135)
Source: Toxin and Toxin Target Database (T3DB)
Skin Eye Respiratory Irritation
Irritating to skin and eyes.
Source: Hazardous Substances Data Bank (HSDB)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Cleaning agent Emulsifier Foamant No specific technical function Surfactant (surface active agent) Wetting agent (non-aqueous)
Regulatory List Membership (2)
EPA Safer Chemical Ingredients List (SCIL) FDA Indirect Food Contact Additives

Expert Verdict

Expert safety assessment and concern-level summary for Ammonium Lauryl Sulfate.

Regulatory Flags

rinse-off-preferred concentration-dependent-irritant avoid-high-concentration-leave-on CIR-assessed anionic-surfactant milder-than-SLS non-sensitizing epa_safer_alternative

Known Synonyms

Sulfuric acid, monododecyl ester, ammonium salt Caswell No. 044B Conco sulfate A EINECS 218-793-9 EPA Pesticide Chemical Code 079028 Sulfuric acid, lauryl ester, ammonium salt Texa pon A 400 UNII-Q7AO2R1M0B

Chemical Function

Surfactant (surface active agent) Emulsifier Cleaning agent Foamant No specific technical function

Regulatory Lists

inert_ingredient; non_food_use; Pesticides Indirect additives food contact (10/2018) SCIL (9/2019) active_ingredient; animal_products; Europe; pharmaceutical; residue

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.

ChEMBL ID
CHEMBL1893617
View full pharmaceutical profile →

Frequently Asked Questions

Is Ammonium Lauryl Sulfate safe in cosmetics?

Ammonium Lauryl Sulfate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is Ammonium Lauryl Sulfate allowed in the EU?

Ammonium Lauryl Sulfate EU regulatory status: permitted. Maximum allowed concentration: 16%. This is based on EU Regulation 1223/2009 and its amendments.

What does Ammonium Lauryl Sulfate do in cosmetics?

Ammonium Lauryl Sulfate functions as: Surfactant, Cleansing, Foaming. It is classified as a cosmetic ingredient in our database. CAS number: 2235-54-3.

Is Ammonium Lauryl Sulfate used outside cosmetics?

Ammonium Lauryl 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.

Does Ammonium Lauryl Sulfate have different safety status in cosmetics vs industrial chemicals?

Ammonium Lauryl Sulfate is classified GHS Danger (H302, H312, H315, H318, H335, H319) in the chemicals database but is allowed in EU cosmetics at max 16%.

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