Product Description: D-Erythro-sphingosyl phosphoinositol is a lipid nanoparticle covalently linked to an antibody with potential activity in targeted compound delivery. D-Erythro-sphingosyl phosphoinositol can enhance the accumulation of compounds in specific cell types. D-Erythro-sphingosyl phosphoinositol may be used as a ligand to enhance the effect of antibodies in immunosuppression. D-Erythro-sphingosyl phosphoinositol can also be used to study the mechanisms related to cell signaling and lipid metabolism.