Biotin-PEG4-STP Ester

Biotin-PEG4-STP Ester

Catalog	BR00028725
Structure
Description	Biotin-PEG4-STP Ester (4-Sulfo-2,3,5,6-tetrafluorophenyl ester) is an amine-reactive, water-soluble labeling reagent used to modify proteins, antibodies, and other amine-containing biopolymers in 100% aqueous media. The hydrophilic polyethylene glycol (PEG) spacer arm of this reagent imparts water solubility that is transferred to the labeled molecule, thus reducing aggregation of labeled proteins stored in solution. The PEG spacer arm also gives the reagent a long and flexible connection to minimize steric hindrance involved with binding to avidin molecules.
Molecular Weight	719.7 g/mol
Molecular Formula	C27H37F4N3O11S2
Solubility	DMSO, DMF, Water
Storage	-20°C
Shipping	Ambient Temperature

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