Biotin/STP PEG reagent, Biotin-PEG4-STP ester, Purity 95%

Synonym: Biotin-PEG4-STP Ester

PubChem CID: 164577312

Size

5 mg; 25 mg; 100 mg

Price

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Datasheet

Datasheet

MSDS

MSDS

Properties

Description

Biotin-PEG4-STP ester (4-Sulfo-2,3,5,6-tetrafluorophenyl ester) is an amine-reactive labeling reagent designed for use in aqueous environments. It is commonly employed to modify proteins, antibodies, and other amine-containing biopolymers in 100% aqueous media. The hydrophilic polyethylene glycol (PEG) spacer arm of this reagent facilitates water solubility, thereby minimizing aggregation of labeled proteins stored in solution.

Molecular Weight

719.7

Molecular Formula

C₂₇H₃₇F₄N₃O₁₁S₂

Functional Group 1

Biotin

Functional Group 2

STP

Functional Group 3

None

Form

Reported

Purity

95%

Solubility

DMSO, DMF, Water

Identity

Confirmed by NMR.

Applications

Biotin-PEG4-STP ester finds widespread application in bioconjugation studies, allowing specific attachment of biotin to proteins and peptides under mild reaction conditions in aqueous solutions. The resulting biotinylated molecules are frequently utilized in various downstream applications such as affinity purification, immunoprecipitation, and protein detection assays, including Western blotting and immunofluorescence microscopy. Additionally, the water solubility imparted by the PEG spacer arm enhances the stability and solubility of the labeled biomolecules, making them suitable for long-term storage and downstream biochemical analyses.

Storage

Store at -20°C

For Research Use Only. Not For Clinical Use.