Bisdisulizole disodium

Bisdisulizole disodium (CAS 180898-37-7), also known as disodium phenyl dibenzimidazole tetrasulfonate and marketed as Neo Heliopan AP, is a water-soluble UVA filter for sun care and cosmetic formulations.

Where is Bisdisulizole disodium used?

• Sun care: primary UVA filter in SPF lotions, sprays and creams
• Daily skincare: incidental UV protection in moisturizers and foundations
• Combination sunscreen systems: boosts critical wavelength
• It provides broad-spectrum UVA absorption so formulators meet photoprotection standards.

Good to know: Water solubility suits aqueous and hydrophilic formulations where oil-phase UV actives are unsuitable. Compliant with EU Cosmetics Regulation Annex VI listings.

Commercial specifications

• Packaging from kilogram-scale bags to bulk quantities