PARSOL® 1789

The original global standard for UVA protection

UV filters

An inorganic UV filter providing a very good SPF boost and a significant contribution to the UVA protection

PARSOL® 1789 (INCI: Butyl Methoxydibenzoylmethane) is a very strong and efficient UVA absorber for sunscreen and other skin care formulations. It enables broadband protection when combined with effective UVB filters and can also contribute to SPF. PARSOL® 1789 is an oil-soluble, white to pale yellow powder that must be completely solubilized in formulations. It works with a range of solubilizers including the UVB filters PARSOL® 340, PARSOL® EHS, PARSOL® MCX, and many emollients. PARSOL® 1789 should be photostabilized, for example with PARSOL® 340. This UV filter is approved worldwide.

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Product Status

  • INCI name: Butyl Methoxydibenzoylmethane 
  • CAS No.: 70356-09-1 
  • EINECS: 274-581-6 
  • Max use level approved: ✓ ASEAN: 5%, ✓ China: 5%, ✓ Europe: 5%, ✓ Japan: 10%, ✓ Mercosur: 5%, ✓ S. Africa: 5%, ✓ USA: Avobenzone - up to 3%; Up to 3% when used in combination with other sunscreens per Monograph
  • PARSOL® 1789 is an oil soluble solid. Adequate amounts of suitable solvent should be chosen to avoid recrystallization of PARSOL® 1789 during storage. To maximize utilization and high performance, PARSOL® 1789 should be properly photostabilized. Excellent materials for stabilization are PARSOL® 340 and PARSOL® 5000 or mixtures thereof. Additional options are PARSOL® SLX or Benzophenone-3. Use a chelating agent like EDTA.

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