A New Bromophenol from the Brown Alga Leathesia nana

A novel bromophenol was isolated from ethanolic extract of the brown alga Leathesia nana S.et G. The structure was elucidated as (E)-3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-methylpropenal by spectroscopic methods including IR, HREIMS, 1D and 2D NMR techniques.