英文别名Biotin EP Impurity D; 9-Methyl Biotin (Mixture of diastereomers); Biotin Impurity 4; (3aS,4S,6aR)-Hexahydro-α-Methyl-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanoic Acid; Biotin Impurity D (9-Methyl Biotin); 9-Methyl Biotin; 1H-Thieno[3,4-d]imidazole-4-pentanoic acid, hexahydro-α-methyl-2-oxo-, (3aS,4S,6aR)-