What does the restriction note for SODIUM PHENYLBENZIMIDAZOLE SULFONATE mean?

The restriction field for SODIUM PHENYLBENZIMIDAZOLE SULFONATE reads: VI/6. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 5997-53-5?

CAS 5997-53-5 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains SODIUM PHENYLBENZIMIDAZOLE SULFONATE?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3802921/11/2016

SODIUM PHENYLBENZIMIDAZOLE SULFONATE

1H-Benzimidazole-5-sulfonic acid, 2-phenyl-, monosodium salt

SODIUM PHENYLBENZIMIDAZOLE SULFONATE is linked to 1 EU annex record on this page. Inventory note: VI/6.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Positive-list entry with conditions Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Source mapped Official source mapped; ingredient rule not imported	0	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 5997-53-5

CAS 5997-53-5PubChem CID 23663543

Ensulizole sodium

IUPAC name: sodium 2-phenyl-3H-benzimidazole-5-sulfonate

Molecular formula: C13H9N2NaO3S
Molecular weight: 296.28 g/mol
Exact mass: 296.02315761 Da
Topological polar surface area: 94.3 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

Sodium phenylbenzimidazole sulfonate66LQ48A9BTSodium 2-phenyl-5-benzimidazolesulfonateENSULIZOLE SODIUM SALT2-Phenyl-1H-benzimidazole-5-sulfonic acid sodium saltPhenylbenzimidazole sulfonic acid sodium salt1H-Benzimidazole-5-sulfonic acid, 2-phenyl-, monosodium saltENSULIZOLE SODIUM [WHO-DD]

16 more reported names

ENSULIZOLE SODIUM SALT [MI]5(or 6)-Benzimidazolesulfonic acid, 2-phenyl-, sodium salt1H-Benzimidazole-6-sulfonic acid, 2-phenyl-, sodium salt (1:1)PHENYLBENZIMIDAZOLE-5-SULFONATE SODIUMPHENYLBENZIMIDAZOLE-5-SULPHONATE SODIUM2-PHENYL-5-BENZIMIDAZOLSULFONATE SODIUMSODIUM 2-PHENYL-1H-BENZYLIMIDAZOLE-5-SULFONATE2-PHENYL-5-BENZIMIDAZOLSULFONATE SODIUM [WHO-DD]RefChem:590857SODIUM PHENYLBENZIMIDAZOLE SULFONATE [INCI]611-922-3sodium;2-phenyl-3H-benzimidazole-5-sulfonateSodium 2-phenyl-1H-benzo[d]imidazole-5-sulfonate2-Phenylbenzimidazole-5-sulfonic acid sodium saltUNII-66LQ48A9BTJNUBZSFXMKCDFD-UHFFFAOYSA-M

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID601021879

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for SODIUM PHENYLBENZIMIDAZOLE SULFONATE

INCI name

SODIUM PHENYLBENZIMIDAZOLE SULFONATE

Description

1H-Benzimidazole-5-sulfonic acid, 2-phenyl-, monosodium salt

Record provenance

Inventory reference: 38029
Imported identity: SODIUM PHENYLBENZIMIDAZOLE SULFONATE
Source update: 21/11/2016

European Commission CosIng source notes

Annex records for SODIUM PHENYLBENZIMIDAZOLE SULFONATE

Annex VI Restriction reference

Entry 6

PHENYLBENZIMIDAZOLE SULFONIC ACID

CAS: 27503-81-7

EC: 248-502-0

Key data

CAS

5997-53-5

—

Restriction

VI/6

Function

UV ABSORBER: Protecting the cosmetic product from the effects of UV-light.
UV FILTER: Exclusively or mainly intended to protect the skin and/or hair against certain UV radiation by absorbing, reflecting or scattering UV radiation. All authorised UV filters are substances in the positive list of Annex VI to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#26925 · SODIUM PHENYLBENZIMIDAZOLE SULFONATE

Ingredients with overlapping formulation functions

POTASSIUM PHENYLBENZIMIDAZOLE SULFONATEUV ABSORBER, UV FILTER

R-(METHIONYL TRIPEPTIDE-46 HEXAPEPTIDE-40 TETRAPEPTIDE-66 SYNECHOCOCCUS POLYPEP…ANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, COLORANT, HUMECTANT, SKIN CONDITIONING, UV FILTER

S-DNA APTAMER-1ANTIOXIDANT, BUFFERING, UV FILTER

S-DNA APTAMER-2ANTIOXIDANT; REDUCING; SKIN PROTECTING; UV FILTER; pH ADJUSTERS

SR-HYDROZOAN POLYPEPTIDE-1FILM FORMING, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING, UV FILTER

STREPTOMYCES SP. AN120535 FERMENT EXTRACT FILTRATEUV FILTER

TEA-PHENYLBENZIMIDAZOLE SULFONATEUV ABSORBER, UV FILTER

TEA-SALICYLATELIGHT STABILIZER, PRESERVATIVE, UV FILTER

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How SODIUM PHENYLBENZIMIDAZOLE SULFONATE appears in the CosIng inventory

The CosIng inventory lists SODIUM PHENYLBENZIMIDAZOLE SULFONATE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

SODIUM PHENYLBENZIMIDAZOLE SULFONATE is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

SODIUM PHENYLBENZIMIDAZOLE SULFONATE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for SODIUM PHENYLBENZIMIDAZOLE SULFONATE reads: "VI/6". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, SODIUM PHENYLBENZIMIDAZOLE SULFONATE carries the following function designation(s):

CAS 5997-53-5 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for SODIUM PHENYLBENZIMIDAZOLE SULFONATE

This page combines the CosIng inventory entry for SODIUM PHENYLBENZIMIDAZOLE SULFONATE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research SODIUM PHENYLBENZIMIDAZOLE SULFONATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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