Product Name:N-(Azido-PEG4)-N-bis(PEG4-NHS ester)
IUPAC Name:2,5-dioxopyrrolidin-1-yl 1-(1-azido-N-{15-[(2,5-dioxopyrrolidin-1-yl)oxy]-15-oxo-3,6,9,12-tetraoxapentadecan-1-yl}-3,6,9,12-tetraoxapentadecan-15-amido)-3,6,9,12-tetraoxapentadecan-15-oate