Phenylbenzimidazole
Phenylbenzimidazole is a type of chemical compound that is often used in sunscreen products due to its ability to absorb ultraviolet (UV) rays. It is also known as Phenylbenzimidazole Sulfonic Acid (PBSA) or ensulizole.
Chemical Properties[edit | edit source]
Phenylbenzimidazole is a benzimidazole derivative. It is a white to yellowish powder that is soluble in water and alcohols. It has a molecular formula of C13H10N2O3S and a molecular weight of 274.29 g/mol.
Uses[edit | edit source]
The primary use of phenylbenzimidazole is in sunscreens, where it acts as a UV filter. It absorbs UVB rays, helping to protect the skin from damage. It is often combined with other UV filters to provide broad-spectrum protection.
Safety[edit | edit source]
Phenylbenzimidazole is generally considered safe for use in sunscreens. However, some people may experience skin irritation or allergic reactions. It is recommended to do a patch test before using a product containing this ingredient.
See Also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
