DSPE-PEG-TCO, MW 2,000 is a large PEG-lipid with a DSPE group and a trans-cyclooctyne moiety. DSPE is a phospholipid known for spontaneously forming micelles in aqueous media. DSPE-PEG conjugates are commonly used in the development of lipid nanoparticles in drug delivery. TCO is a click chemistry handle that is used with tetrazine-containing compounds for highly efficient labeling. The half-life of TCO is short as it will naturally isomerize into CCO (cis-cycloctene) and lose the reactivity. TCO compound is not recommended for long term storage.
Usually ships within 24 hours.