17-hydroxy-3,6,9,12,15-pentaoxaheptadec-1-yl methanesulfonate

2[-2-(2-{2-[2-(2-hydroxyethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]- ethyl azide

1-azido-17-(methylsulfonyl)oxy-3,6,9,12,15-pentaoxaheptadecane