188038-97-3Relevant articles and documents
STABLE SUNSCREEN COMPOSITION CONTAINING DIBENZOYLMETHANE DERIVATIVE, E.G., PARSOL 1789, AND C12, C16, C18 BRANCHED CHAIN HYDROXYBENZOATE AND/OR C12, C16 BRANCHED CHAIN BENZOATE STABILIZERS/SOLUBILIZERS
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Page column 6-7, (2008/06/13)
A sunscreen composition containing a UV-B dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4′-methoxydibenzoylmethane (PARSOL 1789), and a stabilizer/solubilizer for the dibenzoylmethane derivative selected from formula (I) and formula (II), and mixtures thereof: whereinm=5, 7, 9 or mixtures andn=4, 6, 8 or mixtures; wherein p1 m=5, 7 or mixtures andn=4, 6 or mixtures.These long branched chain alkyl hydroxybenzoates and long branched chain benzoates having a C4± branch at the 2 position are quite effective in stabilizing the dibenzoylmethane derivative UV-B filter compounds making them more effective; effective for longer periods of time.