2,4,6,8-Tetramethylundecyl 2,4,6,8-tetramethylundecanoate: a highly branched preen wax from the kingfisher (Alcedo atthis)

2,4,6,8-Tetramethylundecyl 2,4,6,8-tetramethylundecanoate: a highly branched preen wax from the kingfisher (Alcedo atthis)