中间体 2-piperidinemethanol  2-哌啶甲醇   3433-37-2   ≥98% 

中间体 3-piperidinemethanol  3-哌啶甲醇    4606-65-9    ≥98% 

中间体 4-piperidinemethanol   4-哌啶甲醇   6457-49-4   ≥98%`