Synonyms: 15-biotinlaMino-4,7,10,13-dioxanonanoic acid N-hydroxysucciniMidyl ester;Biotin-PEG4-NHS;Biotin-PEG4-CH2CH2COONHS Ester;21-[(3aS,4S,6aR)-Hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-17-oxo-4,7,10,13-tetraoxa-16-azaheneicosanoic acid 2,5-dioxo-1-pyrrolidinyl ester