Azide-SS-biotin is a cleavable biotinylation reagent for labeling alkyne-containing biomolecules using click chemistry. The azide group reacts with alkynes to form a stable triazole linkage. The hydrophilic PEG spacer arm imparts water solubility that is transferred to the biotinylated molecule. The disulfide bond in this linker can be cleaved using reducing agents such as DTT, BME and TCEP to remove the biotin label.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.