Phenylbenzimidazole Sulfonic Acid (PBSA)
Phenylbenzimidazole Sulfonic Acid (PBSA)
Phenylbenzimidazole Sulfonic Acid (PBSA) is a water-soluble UV filter widely used in sunscreen and personal care formulations. It is known for providing effective protection against UV-B radiation and partial protection against short-range UV-A rays, helping protect the skin from sun damage.
Due to its water-soluble nature, PBSA is commonly incorporated into the aqueous phase of cosmetic formulations, enabling lightweight and non-greasy sunscreen products.
Phenylbenzimidazole Sulfonic Acid is frequently used in combination with other UV filters such as Avobenzone, Titanium Dioxide, or Zinc Oxide to enhance broad-spectrum protection in modern sunscreen formulations.
Indira Ventures supplies high-quality PBSA suitable for cosmetic, personal care, and specialty chemical applications, ensuring consistent quality and reliable supply for global manufacturers.
| CAS Number | 27503-81-7 |
| INCI Name | Phenylbenzimidazole Sulfonic Acid |
| Chemical Formula | C₁₃H₁₀N₂O₃S |
| Molecular Weight | 274.30 g/mol |
| Synonyms | Ensulizole, 2-Phenyl-1H-benzimidazole-5-sulfonic acid, PBSA |
| Parameter | Specification |
|---|---|
| Product Name | Phenylbenzimidazole Sulfonic Acid |
| CAS Number | 27503-81-7 |
| Chemical Formula | C13H10N2O3S |
| Molecular Weight | 274.30 g/mol |
| Appearance | White to off-white powder |
| Purity | ≥ 98% |
| Function | UV-B Filter / UV Absorber |
| Packaging | 20–25 kg fiber drum / carton |
Key Applications
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