Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, commercially known as Bemotrizinol (Tinosorb S), is a highly photostable, oil-soluble broadband UV filter based on a symmetrical triazine scaffold, developed by BASF. It provides exceptionally broad-spectrum protection covering both UVB (peak ~310 nm) and UVA (peak ~343 nm) wavelengths, making it one of the most comprehensive single-molecule UV filters available. Formulators prize it for its outstanding photostability, its ability to stabilize other less photostable UV filters such as butyl methoxydibenzoylmethane (avobenzone), and its low irritation potential, though it remains unauthorized for use in the United States and is primarily used in European, Asian, and Australian sunscreen formulations.