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About This Item
Empirical Formula (Hill Notation):
C14H21N3O5
CAS Number:
Molecular Weight:
311.33
UNSPSC Code:
12352200
Assay:
≥95% (HPLC)
Form:
powder
Quality Segment
assay
≥95% (HPLC)
form
powder
color
white to beige
solubility
DMSO: 2 mg/mL, clear
storage temp.
-10 to -25°C
Application
Desthiobiotin-NHS may be used in protein modification, bioconjugation, and pull-down assays.
Biochem/physiol Actions
Desthiobiotin-NHS, an amine-reactive NHS tag, facilitates efficient and reversible protein enrichment. The desthiobiotin handle, a structural analog of biotin lacking a sulfur atom, exhibits a reduced binding affinity for avidin/streptavidin (µM KD) compared to biotin (pM KD), enabling gentle elution through competitive displacement with biotin or by weakening the interaction with mild alkali, thereby preserving protein integrity. This NHS tag readily conjugates to protein amines, enabling flexible, multi-cycle binding, washing, and elution. Note: the lower affinity of the desthiobiotin handle requires careful optimization to minimize non-specific interactions and potential loss during washes compared to biotin-streptavidin systems.
Storage Class
11 - Combustible Solids
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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