Bemotrizinol

Bemotrizinol (CAS 187393-00-6) is a triazine-based UV filter registered under EC 606-111-6 and commercially available as Tinosorb S, Escalol S, and UV-627, among other trade names. It carries no E-code designation and is classified under HS code 2933690000.

In sunscreen and personal care formulations, bemotrizinol absorbs UV radiation across both UVA and UVB ranges by undergoing reversible photoisomerization, dissipating energy as heat rather than allowing it to penetrate the skin. In polymer and coating systems, it functions as a light stabilizer that inhibits photodegradation of the substrate, extending service life under outdoor exposure.

Bemotrizinol is supplied in compliance with REACH regulations and is permitted as a UV filter in EU cosmetic products under Annex VI of Regulation 1223/2009 at a maximum concentration of 10%. Procurement teams should confirm grade suitability for cosmetic versus industrial applications, as specifications and documentation requirements differ between end markets.