beauty
industrial

Sodium phenylbenzimidazole sulfonate

CAS 5997-53-5

Concern score

Not assessed — no hazard data yet.

Sodium phenylbenzimidazole sulfonate in plain language

What it is: Also known as Ensulizole sodium · 2-phenyl-5-benzimidazolsulfonate sodium · Ensulizole sodium salt · 1H-BENZIMIDAZOLE-5-SULFONIC acid, 2-PHENYL-, monosodium salt · 2-PHENYL-1H-BENZIMIDAZOLE-5-SULFONIC acid sodium salt · 2-PHENYLBENZIMIDAZOLE-5-SULFONIC acid sodium salt
Show all 14 names
5(OR 6)-BENZIMIDAZOLESULFONIC acid, 2-PHENYL-, sodium salt · Sodium 2-PHENYL-1H-BENZYLIMIDAZOLE-5-SULFONATE · sodium 2-phenyl-3H-benzimidazole-5-sulfonate · Phenylbenzimidazole sulfonic acid sodium salt · PHENYLBENZIMIDAZOLE-5-SULFONATE sodium · PHENYLBENZIMIDAZOLE-5-SULPHONATE sodium · Sodium 2-PHENYL-5-BENZIMIDAZOLESULFONATE · Sodium 2-phenyl-1H-benzimidazole-6-sulfonate
What it does: Used in cosmetics as a UV filter.
UV filter
UV absorber
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Sodium phenylbenzimidazole sulfonate appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Industrial

EUCosIngActiveRestriction: VI/6
- Restriction: VI/6Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including UV stabilizer.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including UV stabilizer.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Sodium phenylbenzimidazole sulfonate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Sodium phenylbenzimidazole sulfonate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated 2019-12-20
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Sodium phenylbenzimidazole sulfonate in a product composition. These are source records, not Greenveil catalog products.

Named organisations

Typical roles

UV filterUV absorber

See products using Sodium phenylbenzimidazole sulfonate →

Catalog

Found in these products

Their ingredient lists include Sodium phenylbenzimidazole sulfonate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 18 →Find products without it →