丁基锂（C4H9Li）

正丁基锂，是一种有机化合物，化学式为C4H9Li，主要制备用于有机金属化合物，也可用作聚合催化剂、烃化剂、火箭燃料等。

n-Butyllithium is an organic compound with the formula C4H9Li, which is mainly prepared for organometallic compounds, and can also be used as polymerization catalysts, alkylating agents, rocket fuel, etc.