QS-21, an immunostimulatory saponin, is a powerful vaccine adjuvant that stimulates both Th2 humoral and Th1 cell-mediated immune responses by interacting with antigen presenting cells (APCs) and T cells.

Lysionotin具有祛痰、祛痰、软坚作用。

4-甲基-2-戊酮是一种有机溶剂。有时发现它是尿液的挥发性成分。尿液中的它被认为是职业接触这种溶剂的生物标志物。