Purpureaside C is a phenolic glycoside with significant proinflammatory, immunomodulating and antimicrobial effects.

Atractylodinol, an antimicrobial, is a PRRSV (porcine reproductive and respiratory syndrome virus) inhibitor. Atractylodinol inhibits TGF-β receptor I recycling by binding to vimentin (KD of 454 nM) and inducing the formation of filamentous aggregates.

(-)-5-Epilithospermoside is proposed as a potential marker of botanical origin for phacelia honey.