Good Preservative NOAEL Data

Sodium Salicylate

Also known as: Benzoic acid, 2-hydroxy-, monosodium salt, Sodium salicylic acid, Diuretin, EINECS 200-198-0, Idocyl novum (+7 more)

INCI: SODIUM SALICYLATE

Sodium Salicylate (CAS 54-21-7) is a cosmetic preservative functioning as Denaturant, Preservative, Hair/Skin Conditioning. NOAEL 138 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: restricted, max 0.5% (as acid) preservative (Annex V/3); 2.0% other / 3.0% rinse-off hair (Annex III). 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 54-21-7 →

Auto-generated CPSR Part A draft with source citations
Function
Denaturant, Preservative, Hair/Skin Conditioning
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C7H5NaO3
MW
160.1 g/mol
EC Number
200-198-0
PubChem CID
16760658
IUPAC Name
sodium 2-hydroxybenzoate
InChIKey
ABBQHOQBGMUPJH-UHFFFAOYSA-M

Regulatory Status

EU EU Status restricted
EU Max Conc. 0.5% (as acid) preservative (Annex V/3); 2.0% other / 3.0% rinse-off hair (Annex III)
US US Status permitted
US Notes CIR 2019: safe when formulated to be non-irritating/non-sensitizing. Salicylate salt restrictions apply as combined salicylic acid equivalents.

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 Salicylate.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for Sodium Salicylate. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL =30 mg/kg bw/day oral Rat developmental ToxValDB_ECHA_IUCLID
NOAEL =90 mg/kg bw/day oral Rat reproduction developmental ToxValDB_ECHA_IUCLID
NOAEL =800 mg/kg bw/day oral Mouse reproduction developmental ToxValDB_ECHA_IUCLID

Pre-Calculated Safety Assessment

Pre-calculated NOAEL → SED → MoS audit trail for Sodium Salicylate across SCCS product categories, with measured dermal absorption where available.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Preservative
Regulatory List Membership (1)
FDA Indirect Food Contact Additives

Expert Verdict

Expert safety assessment and concern-level summary for Sodium Salicylate.

Regulatory Flags

EU_RESTRICTED

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Sodium Salicylate by CAS number or substance name.

Studies
3
Lowest NOAEL
30 mg/kg bw/day
Highest NOAEL
800 mg/kg bw/day
ToxValDB_ECHA_IUCLID

Known Synonyms

Benzoic acid, 2-hydroxy-, monosodium salt Sodium salicylic acid Diuretin EINECS 200-198-0 Idocyl novum Monosodium 2-hydroxybenzoate NSC 202167 Parbocyl-rev Salicylic acid, sodium salt Natrium salicylat UNII-WIQ1H85SYP Natrum salicylicum

Chemical Function

Preservative

Regulatory Lists

inert_ingredient; non_food_use; Pesticides Europe; Personal care - body hygiene - hand soap CEDI Indirect additives food contact (10/2018) active_ingredient; Europe; Pesticides active_ingredient; animal_products; Europe; pharmaceutical; residue Europe; Personal care - hair styling and care - shampoo-dandruff

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 SALICYLATE
ChEMBL ID
CHEMBL447868
Max Phase
1
View full pharmaceutical profile →

Frequently Asked Questions

Is Sodium Salicylate safe in cosmetics?

Sodium Salicylate has a safety rating of "GOOD" in our database. EU status: restricted. US status: permitted. 3 toxicological study endpoint(s) are available in our database.

Is Sodium Salicylate allowed in the EU?

Sodium Salicylate EU regulatory status: restricted. Maximum allowed concentration: 0.5% (as acid) preservative (Annex V/3); 2.0% other / 3.0% rinse-off hair (Annex III). This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Salicylate do in cosmetics?

Sodium Salicylate functions as: Denaturant, Preservative, Hair/Skin Conditioning. It is classified as a Preservative in our database. CAS number: 54-21-7.

What is the NOAEL for Sodium Salicylate?

The NOAEL (No Observed Adverse Effect Level) for Sodium Salicylate is =30 mg/kg bw/day based on a developmental study via oral route in Rat. A total of 3 study endpoints are available. Source: ToxValDB_ECHA_IUCLID.

Is Sodium Salicylate used outside cosmetics?

Sodium Salicylate 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 Sodium Salicylate have different safety status in cosmetics vs industrial chemicals?

Sodium Salicylate is classified GHS CMR hazard (H302, H319, H361, H361d) in the chemicals database but is restricted in EU cosmetics at max 0.5% (as acid) preservative (Annex V/3); 2.0% other / 3.0% rinse-off hair (Annex III).

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THIMEROSAL
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