Pentynoic acid STP ester sodium is a water-soluble click-chemistry reagent that contains a terminal propargyl (alkyne) group and an STP (sulfotetrafluorophenyl) activated ester. It is used to introduce alkyne handles onto biomolecules via amine-directed conjugation, enabling subsequent bioorthogonal click reactions.
- Water-soluble alkyne-activated ester for bioconjugation.
- Enables installation of terminal alkyne handles on proteins and peptides.
- STP activated ester reacts efficiently with primary amines.
- High reported purity suitable for sensitive biomolecular applications.
- Stable when stored sealed and protected from moisture; compatible with low-temperature storage in solution.