Biotin-PEG4-NHS Ester

Catalog#
Unit Size
Price (USD)
Availability
Qty
B103-25
25 mg
$115.00
In stock
B103-100
100 mg
$219.00
In stock
B103-1G
1000 mg
$720.00
In stock

    Biotin-PEG4-NHS Ester reacts specifically and efficiently with primary amines (e.g., a side chain of lysine residues or aminosilane-coated surfaces) at pH 7-9 to form covalent bonds. 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
    588.67
    Chemical composition
    C25H40N4O10S
    CAS
    459426-22-3
    Solubility
    DMSO, DMF, DCM, THF, Chloroform
    Purity
    >95%
    Appearance
    White to grey amorphous solid
    Storage conditions
    -20°C. Desiccate
    Shipping conditions
    Ambient temperature

    Enter only one — either volume or amount of protein to be labeled
    Enter only one — either maximum concentration of DMSO or volume DMSO added to label
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