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Medchemexpress LLC Pentynoic acid STP ester sodium | 1807530-14-8 | 99.5% | C11H5F4NaO5S | 10MG
Supplier: Medchemexpress LLC HY13824610MG
Pentynoic acid STP ester sodium is a water-soluble, alkyne-activated STP (sulfotetrafluorophenyl) ester reagent used to introduce a terminal alkyne handle onto proteins and peptides for bioconjugation. It enables amine-targeted coupling under mild, aqueous conditions and subsequent alkyne-based conjugation such as copper(I)-catalyzed azide-alkyne cycloaddition.
- Contains a terminal propargyl (alkyne) group for click chemistry.
- STP activated ester enables efficient coupling to lysine residues.
- Water-soluble formulation suitable for reactions in aqueous buffers.
- High purity for reproducible bioconjugation outcomes.
- DMSO-soluble at high concentration; ultrasonication may be required.
- Store sealed and away from moisture to preserve reagent activity.
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