

HY-W190908 · 25 mg
MedChemExpress · Cat: HY-W190908
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medchemexpress.com/desthiobiotin-peg3-nhs-ester.htmlDescription
Desthiobiotin-PEG3-NHS ester is a single-ring, sulfur-free analog of biotin that binds to streptavidin with nearly equal specificity but less affinity than biotin Kd = 1011 vs. 1015 M, respectively . Consequently, desthiobiotinylated proteins can be eluted readily and specifically from streptavidin affinity resin using mild conditions based on competitive displacement with free biotin.



