生物素又称B复合维生素。这是一种双环化合物，分子量244.31 Da。生物素是哺乳动物羧化酶的重要辅助因子。它在细胞中以游离和结合混合物形式存在。 应用 生物素已用于： 作为 体外 培养系统中的M199培养基补充剂 作为分离皮质少突胶质细胞前体（OPC）的SATO无血清培养基成分 脂肪酸 从头 合成的生化前体培养 作为聚集培养基组分 Biotin is also called as B complex vitamin. It is a bicyclic compound, which has a molecular weight of 244.31 Da. Biotin serves as an important cofactor for mammalian carboxylases. It is found within the cells in free and bound pools. Application Biotin has been used: as a M199 media supplement in in vitro culture system as a component of SATO serum free medium for the isolation of cortical oligodendrocyte precursors (OPCs) in biochemical precursors culture for de novo fatty acid synthesis as a component in aggregate culture media