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Structure of 1308299-09-3
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Propargyl-PEG4-Br features a reactive propargyl bromide handle flanked by a four-ethylene glycol unit spacer, enabling efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC). This bifunctional linker combines excellent solubility in aqueous and organic media with stable storage under standard conditions.
Propargyl-PEG4-Br serves as a versatile bifunctional linker for conjugation and polymer synthesis, combining the reactivity of a terminal alkyne with a hydrolytically stable, water-soluble PEG4 spacer. The bromide functionality enables efficient nucleophilic substitution with amines, thiols, or azides, while the propargyl group supports copper-catalyzed azide-alkyne cycloaddition (CuAAC). Its stability under physiological conditions and ease of purification make it ideal for bioconjugation, probe labeling, and the construction of functionalized polymers and drug delivery systems.
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GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: