Bisdisulizole disodium

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Bisdisulizole disodium
Skeletal formula of bisdisulizole disodium
Space-filling model of the component ions of bisdisulizole disodium
IUPAC name
disodium 2,2'-(1,4-phenylene)bis(6-sulfo-1H-benzimidazole-4-sulfonate)
3D model (JSmol)
ECHA InfoCard 100.121.951
Molar mass 674.55 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Bisdisulizole disodium (INN[1]/USAN,[2] trade name Neo Heliopan AP, INCI disodium phenyl dibenzimidazole tetrasulfonate) is a water-soluble organic compound which is added to sunscreens to absorb UVA rays. It is marketed by Symrise.

Bisdisulizole disodium is not approved in the United States by the FDA, but it has been approved in the European Union since the year 2000[3] and other parts of the world.[4][5]


  1. ^[permanent dead link]
  2. ^ "Statement on a nonproprietary name adopted by the USAN Council: Bisdisulizole disodium" (PDF). American Medical Association. April 4, 2006. Retrieved 2008-01-08.
  3. ^ Osstervalder U, Luther H, Herzog B (2001). "Über den Lichtschutzfaktor hinaus - neue effiziente und photostabile UVA-Filter". Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz (in German). 44 (5): 463–70. doi:10.1007/s001030170019.
  4. ^ "10. Sunscreens" (PDF). Australian regulatory guidelines for OTC medicines. Commonwealth Department of Health and Ageing, Therapeutic Goods Administration. July 1, 2003. p. 14. Archived from the original (PDF) on August 31, 2007. Retrieved 2008-01-08.
  5. ^ "Symrise UV protection products" (PDF). Symrise. Retrieved 2008-08-10.