Synonyms: 3-Pyrrolidinesulfonicacid,1-[[6-[[5-(hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl)-1-oxopentyl]amino]-1-oxohexyl]oxy]-2,5-dioxo-,monosodium salt, [3aS-(3aa,4b,6aa)]-[partial]-; 3-Pyrrolidinesulfonic acid,1-[[6-[[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]amino]-1-oxohexyl]oxy]-2,5-dioxo-,monosodium salt (9CI); EZ-Link Sulfo-NHS-LC-Biotin; Sulfo-NHS-LC-biotin