英文别名2,5-Dioxopyrrolidin-1-yl 1-chloro-2-oxo-6,9,12,15-tetraoxa-3-azaoctadecan-18-oate; 2-Chloro-N-{15-[(2,5-dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}acetamide; Cl-peg4-nhsester; Cl-PEG4-NHS ester; Cl-NH-PEG4-NHS; (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[(2-chloroacetyl)amino]ethoxy]ethoxy]ethoxy]ethoxy]propanoate; 2,5-dioxopyrrolidin-1-yl 1-(2-chloroacetamido)-3,6,9,12-tetraoxapentadecan-15-oate; Propanoic acid, 3-[(14-chloro-13-oxo-3,6,9-trioxa-12-azatetradec-1-yl)oxy]-, 2,5-dioxo-1-pyrrolidinyl ester; C1-PEG4-NHS,Ester 
