PHENYLBENZIMIDAZOLE SULFONIC ACID
LIGHT STABILIZER · UV ABSORBER · UV FILTER · CAS 27503-81-7 · EC 248-502-0
Chemical identification
- INCI
- PHENYLBENZIMIDAZOLE SULFONIC ACID
- Chemical name
- 2-Phenyl-1H-benzimidazole-5-sulphonic acid
- IUPAC
- —
- CAS
- 27503-81-7
- EC / EINECS
- 248-502-0
- Trade synonyms
- 28810
EU regulatory status
- Reference
- VI/6
- Maximum concentration
- 8%(as acid)
- Other conditions
- —
- Warnings
- —
- CMR
- Not classified
- Last CosIng update
- 2011-03-08
Recent analyses mentioning this ingredient
Sin análisis publicados todavía para este ingrediente.
Other Annex VI items
- BENZOPHENONE-3
- BENZYLIDENE CAMPHOR SULFONIC ACID
- BIS-(DIETHYLAMINOHYDROXYBENZOYL BENZOYL) PIPERAZINE
- BIS-ETHYLHEXYLOXYPHENOL METHOXYPHENYL TRIAZINE
- BUTYL METHOXYDIBENZOYLMETHANE
- CAMPHOR BENZALKONIUM METHOSULFATE
- DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE
- DIETHYLHEXYL BUTAMIDO TRIAZONE
Technical function
This ingredient is classified as:
About Annex VI of Regulation (EC) No 1223/2009
Annex VI of Regulation (EC) No 1223/2009 contains the list of ultraviolet filters authorised for use in cosmetic products in the European Union. UV filters are substances added specifically to protect the skin and hair from the harmful effects of UV radiation, whether through absorption, reflection or dispersion. Only filters included in this annex may be used for that purpose; their use in other cosmetic categories without a sun-protection function may be subject to additional regulations. Each entry defines the maximum permitted concentration and, in some cases, the product categories or specific use restrictions. The SCCS evaluates the safety of each UV filter prior to its inclusion or modification in the annex. BD-API monitors changes to Annex VI and notifies Responsible Persons via automatic alerts, ensuring the ongoing compliance of sunscreen products and other products containing UV-protection components. Explore the full Annex VI →
Positive lists are tightly governed
New SCCS opinions and amending regulations reshape this Annex regularly — an entry that changes must be reflected in your active formulations. BD-API delivers every change to your system via API, webhooks and automated alerts.
Data source: Official CosIng from the European Commission, updated on 9 April 2026. Learn more →