Synonyms: 5,8,11,14,17,20,23,26-Octaoxa-2-azanonacosanedioic acid,1-(9-fluren-9-ylmethyl)ester;5,8,11,14,17,20,23,26-Octaoxa-2-azanonacosanedioic acid, 1-(9H-fluoren-9-ylMethyl) ester;FMoc-NH-PEG8-CH2CH2COOH;5,8,11,14,17,20,23,26-Octaoxa-2-azanonacosanedioic acid