1H-Thieno(3,4-d)imidazole-4-pentanoic acid, hexahydro-2-oxo-, 5,5-dioxide, (3aS,4S,6aR)- 1H-Thieno(3,4-d)imidazole-4-pentanoic acid, hexahydro-2-oxo-, 5,5-dioxide, (3aS-(3aalpha,4beta,6aalpha))- 40720-05-6 Biotin sulfone