SFS PBSA
Phenylbenzimidazole Sulfonic Acid
Phenylbenzimidazole Sulfonic Acid (PBSA) is a water-soluble UVB filter widely used in sunscreen formulations. It effectively absorbs harmful UVB rays, preventing sunburn and minimizing skin damage caused by prolonged sun exposure. PBSA is known for its high photostability, making it an excellent choice for long-lasting sun protection.
| TRADE NAME | SFS PBSA |
|---|---|
| CHEMICAL NAME | Phenylbenzimidazole Sulfonic Acid, Ensulizole, 2-Phenyl-1H-benzimidazole5-sulfonic acid |
| APPEARANCE | White to off-white powder |
| CAS NUMBER | 27503-81-7 |
| TYPE | Water soluble |
| MOLECULAR FORMULA | C13H10N2O3S |
| MOLECULAR WEIGHT | 274.3 |
| ASSAY | NLT 98.0 % & NMT 102 % |
Structure
| Range of Absorption | UVA II – UVB |
|---|---|
| λ MAX | 302 nm |
| Solubility | Water |
Functions:
It is a water-soluble sun filter that offers protection against UV-B and short range UV-A radiation.
It is a highly effective UV-B filter for the water phase.