Acyl bromides
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Medchemexpress LLC Biotin-PEG3-bromide | 1041766-91-9 | 95.0% | 482.43 g·mol⁻1 | C18H32BrN3O5S | 25 MG
Biotin-PEG3-bromide is a biotinylated short polyethylene glycol (PEG3) linker with a terminal alkyl bromide. It is used to introduce a biotin affinity tag onto molecules via nucleophilic substitution or cross-coupling reactions, enabling streptavidin-based capture, detection, and pull-down workflows in chemical biology and bioconjugation studies.
- Reactive alkyl bromide suitable for nucleophilic substitution and cross-coupling reactions.
- Biotin moiety enables high-affinity capture with streptavidin/avidin reagents.
- Short PEG3 spacer improves solubility and reduces steric hindrance.
- High solubility in DMSO allows preparation of concentrated stock solutions.
- Powder stable at -20°C; follow recommended storage for solutions to maintain integrity.
