DSPE-Biotin (CAS No 2933185-14-7) is a lipid-based compound commonly used in the field of biomedical research particularly in drug delivery and molecular biology Originating from the conjugation of 1 2-distearoyl-sn-glycero-3-phosphoethanolamine (DSPE) with biotin it serves as a linker molecule facilitating the attachment of biotinylated compounds to liposomes and other lipophilic carriers Its mechanism of action involves the introduction of biotin s high-affinity binding to avidin or streptavidin which targets particular pathways crucial for receptor-mediated endocytosis In vitro activity often falls within the nanomolar range enabling precise modulation of cellular interactions and bioavailability DSPE-Biotin is frequently utilized in cell models animal studies and drug screening applications with experimental concentrations typically dependent on specific research designs This versatility enhances its utility in developing targeted therapies and diagnostic tools