SPP-002 is a sulfate ester analogue that acts as a potential Sialyltransferase (ST) inhibitor. It selectively inhibits N-glycan sialylation with at least an order of magnitude greater potency compared to the unmodified parent lithocholic acid (LCA). By inhibiting the integrin/FAK/paxillin signaling pathway, SPP-002 reduces tumor cell migration and invasion. It is applicable in research on tumor metastasis.