吡喃是含一个氧杂原子的六元杂环化合物,有α-吡喃和γ-吡喃两种同分异构体。很多重要的天然物如色素、糖、抗生素、生物碱等,均含有吡喃或吡喃盐的环系,如五碳糖或六碳糖。
吡喃是含一个氧杂原子的六元杂环化合物,有α-吡喃和γ-吡喃两种同分异构体。很多重要的天然物如色素、糖、抗生素、生物碱等,均含有吡喃或吡喃盐的环系,如五碳糖或六碳糖。
2043427 货期咨询
¥ ŜǕȃŹĆŹŹ -1g
2043817 货期咨询
¥ ȃŹĪŹĆŹŹ -1g
2043874 货期咨询
¥ ǀđŜǀĆŹŹ -1g
2043894 货期咨询
¥ ǕþŹŜĆŹŹ -1g
2043901 货期咨询
¥ ǀđŜǀĆŹŹ -1g
2043922 货期咨询
¥ ǀĪŜĪĆŹŹ -1g
2044616 货期咨询
¥ ǕǀðǀĆŹŹ -1g
2044619 货期咨询
¥ þŹǕŜĆŹŹ -1g
2045061 货期咨询
¥ ǀŹǀŜĆŹŹ -1g
2045105 货期咨询
¥ þǦǀđĆŹŹ -1g
2045213 货期咨询
¥ ǀŹǀŜĆŹŹ -1g
2045254 货期咨询
¥ ǀŹǀŜĆŹŹ -1g
2045388 货期咨询
¥ þŜþȃǕĆŹŹ -1g
2045604 货期咨询
¥ ȃðđǀĆŹŹ -1g
2045652 货期咨询
¥ ǕŜȃþĆŹŹ -1g
2045992 货期咨询
¥ þþȃŹĆŹŹ -1g
2046009 货期咨询
¥ ǕŜðŹĆŹŹ -1g
2046130 货期咨询
¥ ȃǦđĪĆŹŹ -1g
2046139 货期咨询
¥ ĪǕĪǀĆŹŹ -1g
2046171 货期咨询
¥ ȃǦđĪĆŹŹ -1g
2046322 货期咨询
¥ ǀǦŜđĆŹŹ -1g
2046402 货期咨询
¥ ǀþǕȃĆŹŹ -1g
2046454 货期咨询
¥ ĪȃȃŜĆŹŹ -1g
2046470 货期咨询
¥ ǦđȃðĆŹŹ -1g
2046534 货期咨询
¥ ȃǕđđĆŹŹ -1g
2046721 货期咨询
¥ ȃȃđȃĆŹŹ -1g
2046798 货期咨询
¥ ǕŜðŹĆŹŹ -1g
2046799 货期咨询
¥ ŜŹȃðǦĆŹŹ -1g
2046816 货期咨询
¥ đǦŹŹĆŹŹ -1g
共 6042 个产品,每页显示 30 个。
现货供应
专业护航
售后无忧
品质保障
无需凑单