Synonyms: Hexanoicacid, 6-[5-(tetrahydro-2-oxothieno[3,4-d]imidazolin-4-yl)valeramido]- (7CI);Hexanoic acid,6-[[5-(hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl)-1-oxopentyl]amino]-,[3aS-(3aa,4b,6aa)]-; 1H-Thieno[3,4-d]imidazole, hexanoic acid deriv.; 6-Biotinamidocaproicacid; 6-[(Biotinyl)amino]hexanoic acid; Biotin X